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-rw-r--r--html/002test.cc.html2
-rw-r--r--html/003trace.cc.html5
-rw-r--r--html/010vm.cc.html10
-rw-r--r--html/011load.cc.html4
-rw-r--r--html/012transform.cc.html4
-rw-r--r--html/014literal_string.cc.html2
-rw-r--r--html/020run.cc.html8
-rw-r--r--html/028call_reply.cc.html8
-rw-r--r--html/029tools.cc.html12
-rw-r--r--html/030container.cc.html2
-rw-r--r--html/033exclusive_container.cc.html2
-rw-r--r--html/038new_text.cc.html2
-rw-r--r--html/040brace.cc.html2
-rw-r--r--html/042name.cc.html2
-rw-r--r--html/043space.cc.html6
-rw-r--r--html/050scenario.cc.html15
-rw-r--r--html/056shape_shifting_recipe.cc.html4
-rw-r--r--html/057immutable.cc.html2
-rw-r--r--html/073wait.cc.html2
-rw-r--r--html/080display.cc.html6
-rw-r--r--html/082scenario_screen.cc.html4
-rw-r--r--html/091socket.cc.html8
-rw-r--r--html/092socket.mu.html230
-rw-r--r--html/101run_sandboxed.cc.html4
-rw-r--r--html/999spaces.cc.html4
-rw-r--r--html/chessboard.mu.html6
-rw-r--r--html/edit/001-editor.mu.html2
-rw-r--r--html/edit/005-sandbox.mu.html2
-rw-r--r--html/edit/011-errors.mu.html2
-rw-r--r--html/lambda-to-mu.mu.html4
30 files changed, 197 insertions, 169 deletions
diff --git a/html/002test.cc.html b/html/002test.cc.html
index 8ef2c73d..8e339e99 100644
--- a/html/002test.cc.html
+++ b/html/002test.cc.html
@@ -34,7 +34,7 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
 <pre id='vimCodeElement'>
 <span class="Comment">//: A simple test harness. To create new tests define functions starting with</span>
 <span class="Comment">//: 'test_'. To run all tests so defined, run:</span>
-<span class="Comment">//:   $ mu test</span>
+<span class="Comment">//:   $ ./mu test</span>
 <span class="Comment">//:</span>
 <span class="Comment">//: Every layer should include tests, and can reach into previous layers.</span>
 <span class="Comment">//: However, it seems like a good idea never to reach into tests from previous</span>
diff --git a/html/003trace.cc.html b/html/003trace.cc.html
index 991df32e..a5523956 100644
--- a/html/003trace.cc.html
+++ b/html/003trace.cc.html
@@ -132,7 +132,7 @@ Dump_trace = <span class="Constant">false</span><span class="Delimiter">;</span>
 <span class="Comment">// compilation units. So no extern linkage.</span>
 <span class="Normal">const</span> <span class="Normal">int</span> Max_depth = <span class="Constant">9999</span><span class="Delimiter">;</span>
 <span class="Normal">const</span> <span class="Normal">int</span> Error_depth = <span class="Constant">0</span><span class="Delimiter">;</span>  <span class="Comment">// definitely always print errors</span>
-<span class="Normal">const</span> <span class="Normal">int</span> App_depth = <span class="Constant">2</span><span class="Delimiter">;</span>  <span class="Comment">// temporarily where all mu code will trace to</span>
+<span class="Normal">const</span> <span class="Normal">int</span> App_depth = <span class="Constant">2</span><span class="Delimiter">;</span>  <span class="Comment">// temporarily where all Mu code will trace to</span>
 
 <span class="Normal">struct</span> trace_stream <span class="Delimiter">{</span>
   vector&lt;trace_line&gt; past_lines<span class="Delimiter">;</span>
@@ -426,7 +426,8 @@ string trim<span class="Delimiter">(</span><span class="Normal">const</span> str
 <span class="Comment">//: Primitive statements will occupy 101-9989</span>
 <span class="Normal">extern</span> <span class="Normal">const</span> <span class="Normal">int</span> Initial_callstack_depth = <span class="Constant">101</span><span class="Delimiter">;</span>
 <span class="Normal">extern</span> <span class="Normal">const</span> <span class="Normal">int</span> Max_callstack_depth = <span class="Constant">9989</span><span class="Delimiter">;</span>
-<span class="Comment">//: Finally, details of primitive mu statements will occupy depth 9990-9999 (more on that later as well)</span>
+<span class="Comment">//: Finally, details of primitive Mu statements will occupy depth 9990-9999</span>
+<span class="Comment">//: (more on that later as well)</span>
 <span class="Comment">//:</span>
 <span class="Comment">//: This framework should help us hide some details at each level, mixing</span>
 <span class="Comment">//: static ideas like layers with the dynamic notion of call-stack depth.</span>
diff --git a/html/010vm.cc.html b/html/010vm.cc.html
index 13e76b37..22196064 100644
--- a/html/010vm.cc.html
+++ b/html/010vm.cc.html
@@ -154,9 +154,9 @@ Memory<span class="Delimiter">.</span>clear<span class="Delimiter">();</span>
 <span class="Comment">// value 97 as the letter 'a', while a different location of type 'number'</span>
 <span class="Comment">// would not.</span>
 <span class="Comment">//</span>
-<span class="Comment">// Unlike most computers today, mu stores types in a single big table, shared</span>
-<span class="Comment">// by all the mu programs on the computer. This is useful in providing a</span>
-<span class="Comment">// seamless experience to help understand arbitrary mu programs.</span>
+<span class="Comment">// Unlike most computers today, Mu stores types in a single big table, shared</span>
+<span class="Comment">// by all the Mu programs on the computer. This is useful in providing a</span>
+<span class="Comment">// seamless experience to help understand arbitrary Mu programs.</span>
 <span class="Normal">typedef</span> <span class="Normal">int</span> type_ordinal<span class="Delimiter">;</span>
 <span class="Delimiter">:(before &quot;End Globals&quot;)</span>
 map&lt;string<span class="Delimiter">,</span> type_ordinal&gt; Type_ordinal<span class="Delimiter">;</span>
@@ -230,7 +230,7 @@ atexit<span class="Delimiter">(</span>teardown_types<span class="Delimiter">);</
 <span class="Delimiter">:(code)</span>
 <span class="Comment">//: It's all very well to construct recipes out of other recipes, but we need</span>
 <span class="Comment">//: to know how to do *something* out of the box. For the following</span>
-<span class="Comment">//: recipes there are only codes, no entries in the book, because mu just knows</span>
+<span class="Comment">//: recipes there are only codes, no entries in the book, because Mu just knows</span>
 <span class="Comment">//: what to do for them.</span>
 <span class="Normal">void</span> setup_recipes<span class="Delimiter">()</span> <span class="Delimiter">{</span>
   Recipe<span class="Delimiter">.</span>clear<span class="Delimiter">();</span>  Recipe_ordinal<span class="Delimiter">.</span>clear<span class="Delimiter">();</span>
@@ -568,7 +568,7 @@ string_tree* property<span class="Delimiter">(</span><span class="Normal">const<
 <span class="Delimiter">}</span>
 
 <span class="Delimiter">:(before &quot;End Globals&quot;)</span>
-<span class="Normal">extern</span> <span class="Normal">const</span> string Ignore<span class="Delimiter">(</span><span class="Constant">&quot;,&quot;</span><span class="Delimiter">);</span>  <span class="Comment">// commas are ignored in mu except within [] strings</span>
+<span class="Normal">extern</span> <span class="Normal">const</span> string Ignore<span class="Delimiter">(</span><span class="Constant">&quot;,&quot;</span><span class="Delimiter">);</span>  <span class="Comment">// commas are ignored in Mu except within [] strings</span>
 <span class="Delimiter">:(code)</span>
 <span class="Normal">void</span> skip_whitespace_but_not_newline<span class="Delimiter">(</span>istream&amp; in<span class="Delimiter">)</span> <span class="Delimiter">{</span>
   <span class="Normal">while</span> <span class="Delimiter">(</span><span class="Constant">true</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
diff --git a/html/011load.cc.html b/html/011load.cc.html
index 4bcbd016..0a1991b9 100644
--- a/html/011load.cc.html
+++ b/html/011load.cc.html
@@ -34,9 +34,9 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
 </head>
 <body>
 <pre id='vimCodeElement'>
-<span class="Comment">//: Phase 1 of running mu code: load it from a textual representation.</span>
+<span class="Comment">//: Phase 1 of running Mu code: load it from a textual representation.</span>
 <span class="Comment">//:</span>
-<span class="Comment">//: The process of running mu code:</span>
+<span class="Comment">//: The process of running Mu code:</span>
 <span class="Comment">//:   load -&gt; transform -&gt; run</span>
 
 <span class="Delimiter">:(scenarios load)</span>  <span class="Comment">// use 'load' instead of 'run' in all scenarios in this layer</span>
diff --git a/html/012transform.cc.html b/html/012transform.cc.html
index c7e405eb..860b1de4 100644
--- a/html/012transform.cc.html
+++ b/html/012transform.cc.html
@@ -31,13 +31,13 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
 <pre id='vimCodeElement'>
 <span class="Comment">//: Phase 2: Filter loaded recipes through an extensible list of 'transforms'.</span>
 <span class="Comment">//:</span>
-<span class="Comment">//:   The process of running mu code:</span>
+<span class="Comment">//:   The process of running Mu code:</span>
 <span class="Comment">//:     load -&gt; transform -&gt; run</span>
 <span class="Comment">//:</span>
 <span class="Comment">//: The hope is that this framework of transform tools will provide a</span>
 <span class="Comment">//: deconstructed alternative to conventional compilers.</span>
 <span class="Comment">//:</span>
-<span class="Comment">//: We're going to have many transforms in mu, and getting their order right</span>
+<span class="Comment">//: We're going to have many transforms in Mu, and getting their order right</span>
 <span class="Comment">//: (not the same as ordering of layers) is a well-known problem. Some tips:</span>
 <span class="Comment">//:   a) Design each layer to rely on as few previous layers as possible.</span>
 <span class="Comment">//:</span>
diff --git a/html/014literal_string.cc.html b/html/014literal_string.cc.html
index db095813..89329b1c 100644
--- a/html/014literal_string.cc.html
+++ b/html/014literal_string.cc.html
@@ -38,7 +38,7 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
 <span class="Comment">//:</span>
 <span class="Comment">//: Instead of quotes, we'll use [] to delimit strings. That'll reduce the</span>
 <span class="Comment">//: need for escaping since we can support nested brackets. And we can also</span>
-<span class="Comment">//: imagine that 'recipe' might one day itself be defined in mu, doing its own</span>
+<span class="Comment">//: imagine that 'recipe' might one day itself be defined in Mu, doing its own</span>
 <span class="Comment">//: parsing.</span>
 
 <span class="Delimiter">:(scenarios load)</span>
diff --git a/html/020run.cc.html b/html/020run.cc.html
index bc31010d..cb39df0e 100644
--- a/html/020run.cc.html
+++ b/html/020run.cc.html
@@ -39,11 +39,11 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
 <pre id='vimCodeElement'>
 <span class="Comment">//: Phase 3: Start running a loaded and transformed recipe.</span>
 <span class="Comment">//:</span>
-<span class="Comment">//:   The process of running mu code:</span>
+<span class="Comment">//:   The process of running Mu code:</span>
 <span class="Comment">//:     load -&gt; transform -&gt; run</span>
 <span class="Comment">//:</span>
 <span class="Comment">//: So far we've seen recipes as lists of instructions, and instructions point</span>
-<span class="Comment">//: at other recipes. To kick things off mu needs to know how to run certain</span>
+<span class="Comment">//: at other recipes. To kick things off Mu needs to know how to run certain</span>
 <span class="Comment">//: 'primitive' recipes. That will then give the ability to run recipes</span>
 <span class="Comment">//: containing these primitives.</span>
 <span class="Comment">//:</span>
@@ -184,7 +184,7 @@ map&lt;string<span class="Delimiter">,</span> <span class="Normal">int</span>&gt
 
 <span class="Comment">//: Step 1: load all .mu files with numeric prefixes (in order)</span>
 <span class="Delimiter">:(before &quot;End Load Recipes&quot;)</span>
-<span class="Comment">// Load .mu Core</span>
+<span class="Comment">// Load Mu Prelude</span>
 <span class="CommentedCode">//? Save_trace = true;</span>
 <span class="CommentedCode">//? START_TRACING_UNTIL_END_OF_SCOPE;</span>
 load_file_or_directory<span class="Delimiter">(</span><span class="Constant">&quot;core.mu&quot;</span><span class="Delimiter">);</span>
@@ -429,7 +429,7 @@ vector&lt;<span class="Normal">double</span>&gt; read_memory<span class="Delimit
 ]
 <span class="traceAbsent">-mem: storing 34 in location 0</span>
 
-<span class="Comment">//: mu is robust to various combinations of commas and spaces. You just have</span>
+<span class="Comment">//: Mu is robust to various combinations of commas and spaces. You just have</span>
 <span class="Comment">//: to put spaces around the '&lt;-'.</span>
 
 <span class="Delimiter">:(scenario comma_without_space)</span>
diff --git a/html/028call_reply.cc.html b/html/028call_reply.cc.html
index 9ef06f2c..4c32013f 100644
--- a/html/028call_reply.cc.html
+++ b/html/028call_reply.cc.html
@@ -147,10 +147,12 @@ Transform<span class="Delimiter">.</span>push_back<span class="Delimiter">(</spa
 ]
 <span class="traceContains">+error: f: return ingredient '14:point' can't be saved in '3:num'</span>
 
-<span class="Comment">//: In mu we'd like to assume that any instruction doesn't modify its</span>
+<span class="Comment">//: In Mu we'd like to assume that any instruction doesn't modify its</span>
 <span class="Comment">//: ingredients unless they're also products. The /same-as-ingredient inside</span>
-<span class="Comment">//: the recipe's 'reply' will help catch accidental misuse of such</span>
-<span class="Comment">//: 'ingredient-products' (sometimes called in-out parameters in other languages).</span>
+<span class="Comment">//: the recipe's 'reply' indicates that an ingredient is intended to be</span>
+<span class="Comment">//: modified in place, and will help catch accidental misuse of such</span>
+<span class="Comment">//: 'ingredient-products' (sometimes called in-out parameters in other</span>
+<span class="Comment">//: languages).</span>
 
 <span class="Delimiter">:(scenario return_same_as_ingredient)</span>
 <span class="Special">% Hide_errors = true;</span>
diff --git a/html/029tools.cc.html b/html/029tools.cc.html
index c4adebe7..a6322f9c 100644
--- a/html/029tools.cc.html
+++ b/html/029tools.cc.html
@@ -35,13 +35,13 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
 </head>
 <body>
 <pre id='vimCodeElement'>
-<span class="Comment">//: Allow mu programs to log facts just like we've been doing in C++ so far.</span>
+<span class="Comment">//: Allow Mu programs to log facts just like we've been doing in C++ so far.</span>
 
 <span class="Delimiter">:(scenario trace)</span>
 <span class="muRecipe">def</span> main [
-  trace <span class="Constant">1</span><span class="Delimiter">,</span> [foo]<span class="Delimiter">,</span> [<span class="Normal">this</span> is a trace in mu]
+  trace <span class="Constant">1</span><span class="Delimiter">,</span> [foo]<span class="Delimiter">,</span> [<span class="Normal">this</span> is a trace in Mu]
 ]
-<span class="traceContains">+foo: this is a trace in mu</span>
+<span class="traceContains">+foo: this is a trace in Mu</span>
 
 <span class="Delimiter">:(before &quot;End Primitive Recipe Declarations&quot;)</span>
 TRACE<span class="Delimiter">,</span>
@@ -229,9 +229,9 @@ put<span class="Delimiter">(</span>Recipe_ordinal<span class="Delimiter">,</span
 <span class="Delimiter">:(scenario assert)</span>
 <span class="Special">% Hide_errors = true;  // '%' lines insert arbitrary C code into tests before calling 'run' with the lines below. Must be immediately after :(scenario) line.</span>
 <span class="muRecipe">def</span> main [
-  assert <span class="Constant">0</span><span class="Delimiter">,</span> [<span class="Normal">this</span> is an assert in mu]
+  assert <span class="Constant">0</span><span class="Delimiter">,</span> [<span class="Normal">this</span> is an assert in Mu]
 ]
-<span class="traceContains">+error: this is an assert in mu</span>
+<span class="traceContains">+error: this is an assert in Mu</span>
 
 <span class="Delimiter">:(before &quot;End Primitive Recipe Declarations&quot;)</span>
 ASSERT<span class="Delimiter">,</span>
@@ -374,7 +374,7 @@ put<span class="Delimiter">(</span>Recipe_ordinal<span class="Delimiter">,</span
   <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span class="Delimiter">}</span>
 
-<span class="Comment">//: set a variable from within mu code</span>
+<span class="Comment">//: set a variable from within Mu code</span>
 <span class="Comment">//: useful for selectively tracing or printing after some point</span>
 <span class="Delimiter">:(before &quot;End Globals&quot;)</span>
 <span class="Normal">bool</span> Foo = <span class="Constant">false</span><span class="Delimiter">;</span>
diff --git a/html/030container.cc.html b/html/030container.cc.html
index 05838130..2c7bfe6d 100644
--- a/html/030container.cc.html
+++ b/html/030container.cc.html
@@ -690,7 +690,7 @@ put<span class="Delimiter">(</span>Recipe_ordinal<span class="Delimiter">,</span
 ]
 <span class="traceContains">+error: main: product of 'put' must be first ingredient '1:point', but got '3:point'</span>
 
-<span class="SalientComment">//:: Allow containers to be defined in mu code.</span>
+<span class="SalientComment">//:: Allow containers to be defined in Mu code.</span>
 
 <span class="Delimiter">:(scenarios load)</span>
 <span class="Delimiter">:(scenario container)</span>
diff --git a/html/033exclusive_container.cc.html b/html/033exclusive_container.cc.html
index 619010d7..589e3075 100644
--- a/html/033exclusive_container.cc.html
+++ b/html/033exclusive_container.cc.html
@@ -253,7 +253,7 @@ put<span class="Delimiter">(</span>Recipe_ordinal<span class="Delimiter">,</span
 ]
 $error: <span class="Constant">0</span>
 
-<span class="SalientComment">//:: Allow exclusive containers to be defined in mu code.</span>
+<span class="SalientComment">//:: Allow exclusive containers to be defined in Mu code.</span>
 
 <span class="Delimiter">:(scenario exclusive_container)</span>
 <span class="muData">exclusive-container</span> foo [
diff --git a/html/038new_text.cc.html b/html/038new_text.cc.html
index 3a6cb0a4..0cd1e165 100644
--- a/html/038new_text.cc.html
+++ b/html/038new_text.cc.html
@@ -93,7 +93,7 @@ put<span class="Delimiter">(</span>Type_abbreviations<span class="Delimiter">,</
     curr += tb_utf8_char_length<span class="Delimiter">(</span>raw_contents[curr]<span class="Delimiter">);</span>
     ++curr_address<span class="Delimiter">;</span>
   <span class="Delimiter">}</span>
-  <span class="Comment">// mu strings are not null-terminated in memory</span>
+  <span class="Comment">// Mu strings are not null-terminated in memory.</span>
   <span class="Identifier">return</span> result<span class="Delimiter">;</span>
 <span class="Delimiter">}</span>
 
diff --git a/html/040brace.cc.html b/html/040brace.cc.html
index aa4f3908..777e91cf 100644
--- a/html/040brace.cc.html
+++ b/html/040brace.cc.html
@@ -35,7 +35,7 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
 <pre id='vimCodeElement'>
 <span class="Comment">//: Structured programming</span>
 <span class="Comment">//:</span>
-<span class="Comment">//: Our jump recipes are quite inconvenient to use, so mu provides a</span>
+<span class="Comment">//: Our jump recipes are quite inconvenient to use, so Mu provides a</span>
 <span class="Comment">//: lightweight tool called 'transform_braces' to work in a slightly more</span>
 <span class="Comment">//: convenient format with nested braces:</span>
 <span class="Comment">//:</span>
diff --git a/html/042name.cc.html b/html/042name.cc.html
index f74f772d..d7027161 100644
--- a/html/042name.cc.html
+++ b/html/042name.cc.html
@@ -36,7 +36,7 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
 <body>
 <pre id='vimCodeElement'>
 <span class="Comment">//: A big convenience high-level languages provide is the ability to name memory</span>
-<span class="Comment">//: locations. In mu, a transform called 'transform_names' provides this</span>
+<span class="Comment">//: locations. In Mu, a transform called 'transform_names' provides this</span>
 <span class="Comment">//: convenience.</span>
 
 <span class="Delimiter">:(scenario transform_names)</span>
diff --git a/html/043space.cc.html b/html/043space.cc.html
index fe5751c9..d66b6eeb 100644
--- a/html/043space.cc.html
+++ b/html/043space.cc.html
@@ -426,11 +426,11 @@ Update_refcounts_in_write_memory = <span class="Constant">true</span><span class
 Transform<span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>check_default_space<span class="Delimiter">);</span>  <span class="Comment">// idempotent</span>
 <span class="Delimiter">:(code)</span>
 <span class="Normal">void</span> check_default_space<span class="Delimiter">(</span><span class="Normal">const</span> recipe_ordinal r<span class="Delimiter">)</span> <span class="Delimiter">{</span>
-  <span class="Normal">if</span> <span class="Delimiter">(</span>Hide_missing_default_space_errors<span class="Delimiter">)</span> <span class="Identifier">return</span><span class="Delimiter">;</span>  <span class="Comment">// skip previous core tests; this is only for mu code</span>
+  <span class="Normal">if</span> <span class="Delimiter">(</span>Hide_missing_default_space_errors<span class="Delimiter">)</span> <span class="Identifier">return</span><span class="Delimiter">;</span>  <span class="Comment">// skip previous core tests; this is only for Mu code</span>
   <span class="Normal">const</span> recipe&amp; caller = get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">);</span>
   <span class="Comment">// skip scenarios (later layer)</span>
   <span class="Comment">// user code should never create recipes with underscores in their names</span>
-  <span class="Normal">if</span> <span class="Delimiter">(</span>caller<span class="Delimiter">.</span>name<span class="Delimiter">.</span>find<span class="Delimiter">(</span><span class="Constant">&quot;scenario_&quot;</span><span class="Delimiter">)</span> == <span class="Constant">0</span><span class="Delimiter">)</span> <span class="Identifier">return</span><span class="Delimiter">;</span>  <span class="Comment">// skip mu scenarios which will use raw memory locations</span>
+  <span class="Normal">if</span> <span class="Delimiter">(</span>caller<span class="Delimiter">.</span>name<span class="Delimiter">.</span>find<span class="Delimiter">(</span><span class="Constant">&quot;scenario_&quot;</span><span class="Delimiter">)</span> == <span class="Constant">0</span><span class="Delimiter">)</span> <span class="Identifier">return</span><span class="Delimiter">;</span>  <span class="Comment">// skip Mu scenarios which will use raw memory locations</span>
   <span class="Normal">if</span> <span class="Delimiter">(</span>caller<span class="Delimiter">.</span>name<span class="Delimiter">.</span>find<span class="Delimiter">(</span><span class="Constant">&quot;run_&quot;</span><span class="Delimiter">)</span> == <span class="Constant">0</span><span class="Delimiter">)</span> <span class="Identifier">return</span><span class="Delimiter">;</span>  <span class="Comment">// skip calls to 'run', which should be in scenarios and will also use raw memory locations</span>
   <span class="Comment">// assume recipes with only numeric addresses know what they're doing (usually tests)</span>
   <span class="Normal">if</span> <span class="Delimiter">(</span>!contains_non_special_name<span class="Delimiter">(</span>r<span class="Delimiter">))</span> <span class="Identifier">return</span><span class="Delimiter">;</span>
@@ -441,7 +441,7 @@ Transform<span class="Delimiter">.</span>push_back<span class="Delimiter">(</spa
     raise &lt;&lt; caller<span class="Delimiter">.</span>name &lt;&lt; <span class="Constant">&quot; does not seem to start with default-space or local-scope</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; end<span class="Delimiter">();</span>
   <span class="Delimiter">}</span>
 <span class="Delimiter">}</span>
-<span class="Delimiter">:(after &quot;Load .mu Core&quot;)</span>
+<span class="Delimiter">:(after &quot;Load Mu Prelude&quot;)</span>
 Hide_missing_default_space_errors = <span class="Constant">false</span><span class="Delimiter">;</span>
 <span class="Delimiter">:(after &quot;Test Runs&quot;)</span>
 Hide_missing_default_space_errors = <span class="Constant">true</span><span class="Delimiter">;</span>
diff --git a/html/050scenario.cc.html b/html/050scenario.cc.html
index ffdee110..3ca291e8 100644
--- a/html/050scenario.cc.html
+++ b/html/050scenario.cc.html
@@ -151,7 +151,7 @@ vector&lt;scenario&gt; Scenarios<span class="Delimiter">;</span>
 ]
 <span class="traceContains">+run: {1: (&quot;address&quot; &quot;array&quot; &quot;character&quot;)} &lt;- new {&quot;# not a comment&quot;: &quot;literal-string&quot;}</span>
 
-<span class="SalientComment">//:: Run scenarios when we run 'mu test'.</span>
+<span class="SalientComment">//:: Run scenarios when we run './mu test'.</span>
 <span class="Comment">//: Treat the text of the scenario as a regular series of instructions.</span>
 
 <span class="Delimiter">:(before &quot;End Globals&quot;)</span>
@@ -296,7 +296,8 @@ Name[r][<span class="Constant">&quot;__maybe_make_raw_test__&quot;</span>] = Res
   <span class="Normal">if</span> <span class="Delimiter">(</span>recipe_name<span class="Delimiter">.</span>find<span class="Delimiter">(</span><span class="Constant">&quot;scenario-&quot;</span><span class="Delimiter">)</span> == <span class="Constant">0</span><span class="Delimiter">)</span> <span class="Identifier">return</span> <span class="Constant">true</span><span class="Delimiter">;</span>
 
 <span class="SalientComment">//:: The special instructions we want to support inside scenarios.</span>
-<span class="Comment">//: In a compiler for the mu VM these will require more work.</span>
+<span class="Comment">//: These are easy to support in an interpreter, but will require more work</span>
+<span class="Comment">//: when we eventually build a compiler.</span>
 
 <span class="Comment">//: 'run' is a purely lexical convenience to separate the code actually being</span>
 <span class="Comment">//: tested from any setup or teardown</span>
@@ -394,7 +395,7 @@ put<span class="Delimiter">(</span>Recipe_ordinal<span class="Delimiter">,</span
     <span class="Delimiter">}</span>
     <span class="Normal">if</span> <span class="Delimiter">(</span>!is_integer<span class="Delimiter">(</span>rhs<span class="Delimiter">)</span> &amp;&amp; !is_noninteger<span class="Delimiter">(</span>rhs<span class="Delimiter">))</span> <span class="Delimiter">{</span>
       <span class="Normal">if</span> <span class="Delimiter">(</span>Current_scenario &amp;&amp; !Scenario_testing_scenario<span class="Delimiter">)</span>
-        <span class="Comment">// genuine test in a mu file</span>
+        <span class="Comment">// genuine test in a .mu file</span>
         raise &lt;&lt; <span class="Constant">&quot;</span><span class="cSpecial">\n</span><span class="Constant">F - &quot;</span> &lt;&lt; Current_scenario<span class="Delimiter">-&gt;</span>name &lt;&lt; <span class="Constant">&quot;: location '&quot;</span> &lt;&lt; address &lt;&lt; <span class="Constant">&quot;' can't contain non-number &quot;</span> &lt;&lt; rhs &lt;&lt; <span class="Constant">&quot;</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; end<span class="Delimiter">();</span>
       <span class="Normal">else</span>
         <span class="Comment">// just testing scenario support</span>
@@ -408,7 +409,7 @@ put<span class="Delimiter">(</span>Recipe_ordinal<span class="Delimiter">,</span
     trace<span class="Delimiter">(</span><span class="Constant">9999</span><span class="Delimiter">,</span> <span class="Constant">&quot;run&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;checking location &quot;</span> &lt;&lt; address &lt;&lt; end<span class="Delimiter">();</span>
     <span class="Normal">if</span> <span class="Delimiter">(</span>get_or_insert<span class="Delimiter">(</span>Memory<span class="Delimiter">,</span> address<span class="Delimiter">)</span> != value<span class="Delimiter">)</span> <span class="Delimiter">{</span>
       <span class="Normal">if</span> <span class="Delimiter">(</span>Current_scenario &amp;&amp; !Scenario_testing_scenario<span class="Delimiter">)</span> <span class="Delimiter">{</span>
-        <span class="Comment">// genuine test in a mu file</span>
+        <span class="Comment">// genuine test in a .mu file</span>
         raise &lt;&lt; <span class="Constant">&quot;</span><span class="cSpecial">\n</span><span class="Constant">F - &quot;</span> &lt;&lt; Current_scenario<span class="Delimiter">-&gt;</span>name &lt;&lt; <span class="Constant">&quot;: expected location '&quot;</span> &lt;&lt; address &lt;&lt; <span class="Constant">&quot;' to contain &quot;</span> &lt;&lt; no_scientific<span class="Delimiter">(</span>value<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot; but saw &quot;</span> &lt;&lt; no_scientific<span class="Delimiter">(</span>get_or_insert<span class="Delimiter">(</span>Memory<span class="Delimiter">,</span> address<span class="Delimiter">))</span> &lt;&lt; <span class="cSpecial">'\n'</span> &lt;&lt; end<span class="Delimiter">();</span>
       <span class="Delimiter">}</span>
       <span class="Normal">else</span> <span class="Delimiter">{</span>
@@ -467,7 +468,7 @@ put<span class="Delimiter">(</span>Recipe_ordinal<span class="Delimiter">,</span
     trace<span class="Delimiter">(</span><span class="Constant">9999</span><span class="Delimiter">,</span> <span class="Constant">&quot;run&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;checking location &quot;</span> &lt;&lt; address+i &lt;&lt; end<span class="Delimiter">();</span>
     <span class="Normal">if</span> <span class="Delimiter">(</span>get_or_insert<span class="Delimiter">(</span>Memory<span class="Delimiter">,</span> address+i<span class="Delimiter">)</span> != literal<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">))</span> <span class="Delimiter">{</span>
       <span class="Normal">if</span> <span class="Delimiter">(</span>Current_scenario &amp;&amp; !Scenario_testing_scenario<span class="Delimiter">)</span> <span class="Delimiter">{</span>
-        <span class="Comment">// genuine test in a mu file</span>
+        <span class="Comment">// genuine test in a .mu file</span>
         raise &lt;&lt; <span class="Constant">&quot;</span><span class="cSpecial">\n</span><span class="Constant">F - &quot;</span> &lt;&lt; Current_scenario<span class="Delimiter">-&gt;</span>name &lt;&lt; <span class="Constant">&quot;: expected location &quot;</span> &lt;&lt; <span class="Delimiter">(</span>address+i<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot; to contain &quot;</span> &lt;&lt; literal<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot; but saw &quot;</span> &lt;&lt; no_scientific<span class="Delimiter">(</span>get_or_insert<span class="Delimiter">(</span>Memory<span class="Delimiter">,</span> address+i<span class="Delimiter">))</span> &lt;&lt; <span class="Constant">&quot; ('&quot;</span> &lt;&lt; <span class="Normal">static_cast</span>&lt;<span class="Normal">char</span>&gt;<span class="Delimiter">(</span>get_or_insert<span class="Delimiter">(</span>Memory<span class="Delimiter">,</span> address+i<span class="Delimiter">))</span> &lt;&lt; <span class="Constant">&quot;')</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; end<span class="Delimiter">();</span>
       <span class="Delimiter">}</span>
       <span class="Normal">else</span> <span class="Delimiter">{</span>
@@ -751,7 +752,7 @@ put<span class="Delimiter">(</span>Recipe_ordinal<span class="Delimiter">,</span
   <span class="Normal">int</span> count = trace_count<span class="Delimiter">(</span>label<span class="Delimiter">);</span>
   <span class="Normal">if</span> <span class="Delimiter">(</span>count != expected_count<span class="Delimiter">)</span> <span class="Delimiter">{</span>
     <span class="Normal">if</span> <span class="Delimiter">(</span>Current_scenario &amp;&amp; !Scenario_testing_scenario<span class="Delimiter">)</span> <span class="Delimiter">{</span>
-      <span class="Comment">// genuine test in a mu file</span>
+      <span class="Comment">// genuine test in a .mu file</span>
       raise &lt;&lt; <span class="Constant">&quot;</span><span class="cSpecial">\n</span><span class="Constant">F - &quot;</span> &lt;&lt; Current_scenario<span class="Delimiter">-&gt;</span>name &lt;&lt; <span class="Constant">&quot;: &quot;</span> &lt;&lt; maybe<span class="Delimiter">(</span>current_recipe_name<span class="Delimiter">())</span> &lt;&lt; <span class="Constant">&quot;expected &quot;</span> &lt;&lt; expected_count &lt;&lt; <span class="Constant">&quot; lines in trace with label '&quot;</span> &lt;&lt; label &lt;&lt; <span class="Constant">&quot;' in trace: &quot;</span> &lt;&lt; end<span class="Delimiter">();</span>
       DUMP<span class="Delimiter">(</span>label<span class="Delimiter">);</span>
     <span class="Delimiter">}</span>
@@ -776,7 +777,7 @@ put<span class="Delimiter">(</span>Recipe_ordinal<span class="Delimiter">,</span
 <span class="traceContains">+error: main: expected 2 lines in trace with label 'a' in trace</span>
 
 <span class="Comment">//: Minor detail: ignore 'system' calls in scenarios, since anything we do</span>
-<span class="Comment">//: with them is by definition impossible to test through mu.</span>
+<span class="Comment">//: with them is by definition impossible to test through Mu.</span>
 <span class="Delimiter">:(after &quot;case _SYSTEM:&quot;)</span>
   <span class="Normal">if</span> <span class="Delimiter">(</span>Current_scenario<span class="Delimiter">)</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
 
diff --git a/html/056shape_shifting_recipe.cc.html b/html/056shape_shifting_recipe.cc.html
index fe4cc565..fa7aa789 100644
--- a/html/056shape_shifting_recipe.cc.html
+++ b/html/056shape_shifting_recipe.cc.html
@@ -117,8 +117,8 @@ candidates = strictly_matching_shape_shifting_variants<span class="Delimiter">(<
 <span class="Delimiter">}</span>
 <span class="Normal">skip_shape_shifting_variants</span>:<span class="Delimiter">;</span>
 
-<span class="Comment">//: make sure we have no unspecialized shape-shifting recipes being called</span>
-<span class="Comment">//: before running mu programs</span>
+<span class="Comment">//: before running Mu programs, make sure no unspecialized shape-shifting</span>
+<span class="Comment">//: recipes can be called</span>
 
 <span class="Delimiter">:(before &quot;End Instruction Operation Checks&quot;)</span>
 <span class="Normal">if</span> <span class="Delimiter">(</span>contains_key<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> inst<span class="Delimiter">.</span>operation<span class="Delimiter">)</span> &amp;&amp; inst<span class="Delimiter">.</span>operation &gt;= MAX_PRIMITIVE_RECIPES
diff --git a/html/057immutable.cc.html b/html/057immutable.cc.html
index ac57964f..f1fbb793 100644
--- a/html/057immutable.cc.html
+++ b/html/057immutable.cc.html
@@ -561,7 +561,7 @@ set&lt;<span class="Normal">int</span>&gt; ingredient_indices<span class="Delimi
 <span class="Comment">//: can't pass both pointers back out, because if a caller tries to make both</span>
 <span class="Comment">//: identical then you can't tell which value will be written on the way out.</span>
 <span class="Comment">//:</span>
-<span class="Comment">//: Experimental solution: just tell mu that one points inside the other.</span>
+<span class="Comment">//: Experimental solution: just tell Mu that one points inside the other.</span>
 <span class="Comment">//: This way we can return just one pointer as high up as necessary to capture</span>
 <span class="Comment">//: all modifications performed by a recipe.</span>
 <span class="Comment">//:</span>
diff --git a/html/073wait.cc.html b/html/073wait.cc.html
index 15ebd50e..dc24c121 100644
--- a/html/073wait.cc.html
+++ b/html/073wait.cc.html
@@ -36,7 +36,7 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
 <body>
 <pre id='vimCodeElement'>
 <span class="Comment">//: Routines can be put in a 'waiting' state, from which it will be ready to</span>
-<span class="Comment">//: run again when a specific memory location changes its value. This is mu's</span>
+<span class="Comment">//: run again when a specific memory location changes its value. This is Mu's</span>
 <span class="Comment">//: basic technique for orchestrating the order in which different routines</span>
 <span class="Comment">//: operate.</span>
 
diff --git a/html/080display.cc.html b/html/080display.cc.html
index db77ddc2..56533131 100644
--- a/html/080display.cc.html
+++ b/html/080display.cc.html
@@ -77,9 +77,9 @@ put<span class="Delimiter">(</span>Recipe_ordinal<span class="Delimiter">,</span
   <span class="Normal">int</span> height = tb_height<span class="Delimiter">();</span>
   <span class="Normal">if</span> <span class="Delimiter">(</span>width &gt; <span class="Constant">222</span> || height &gt; <span class="Constant">222</span><span class="Delimiter">)</span> tb_shutdown<span class="Delimiter">();</span>
   <span class="Normal">if</span> <span class="Delimiter">(</span>width &gt; <span class="Constant">222</span><span class="Delimiter">)</span>
-    raise &lt;&lt; <span class="Constant">&quot;sorry, mu doesn't support windows wider than 222 characters in console mode. Please resize your window.</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; end<span class="Delimiter">();</span>
+    raise &lt;&lt; <span class="Constant">&quot;sorry, Mu doesn't support windows wider than 222 characters in console mode. Please resize your window.</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; end<span class="Delimiter">();</span>
   <span class="Normal">if</span> <span class="Delimiter">(</span>height &gt; <span class="Constant">222</span><span class="Delimiter">)</span>
-    raise &lt;&lt; <span class="Constant">&quot;sorry, mu doesn't support windows taller than 222 characters in console mode. Please resize your window.</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; end<span class="Delimiter">();</span>
+    raise &lt;&lt; <span class="Constant">&quot;sorry, Mu doesn't support windows taller than 222 characters in console mode. Please resize your window.</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; end<span class="Delimiter">();</span>
   <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span class="Delimiter">}</span>
 
@@ -561,7 +561,7 @@ put<span class="Delimiter">(</span>Recipe_ordinal<span class="Delimiter">,</span
   <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span class="Delimiter">}</span>
 
-<span class="Comment">//: a hack to make edit.mu more responsive</span>
+<span class="Comment">//: hack to make text-mode apps more responsive under Unix</span>
 
 <span class="Delimiter">:(before &quot;End Primitive Recipe Declarations&quot;)</span>
 CLEAR_DISPLAY_FROM<span class="Delimiter">,</span>
diff --git a/html/082scenario_screen.cc.html b/html/082scenario_screen.cc.html
index 48be09ec..222c01a0 100644
--- a/html/082scenario_screen.cc.html
+++ b/html/082scenario_screen.cc.html
@@ -319,7 +319,7 @@ put<span class="Delimiter">(</span>Recipe_ordinal<span class="Delimiter">,</span
         <span class="Normal">if</span> <span class="Delimiter">(</span>color == -<span class="Constant">1</span> || color == get_or_insert<span class="Delimiter">(</span>Memory<span class="Delimiter">,</span> addr+cell_color_offset<span class="Delimiter">))</span> <span class="Identifier">continue</span><span class="Delimiter">;</span>
         <span class="Comment">// contents match but color is off</span>
         <span class="Normal">if</span> <span class="Delimiter">(</span>Current_scenario &amp;&amp; !Scenario_testing_scenario<span class="Delimiter">)</span> <span class="Delimiter">{</span>
-          <span class="Comment">// genuine test in a mu file</span>
+          <span class="Comment">// genuine test in a .mu file</span>
           raise &lt;&lt; <span class="Constant">&quot;</span><span class="cSpecial">\n</span><span class="Constant">F - &quot;</span> &lt;&lt; Current_scenario<span class="Delimiter">-&gt;</span>name &lt;&lt; <span class="Constant">&quot;: expected screen location (&quot;</span> &lt;&lt; row &lt;&lt; <span class="Constant">&quot;, &quot;</span> &lt;&lt; column &lt;&lt; <span class="Constant">&quot;, address &quot;</span> &lt;&lt; addr &lt;&lt; <span class="Constant">&quot;, value &quot;</span> &lt;&lt; no_scientific<span class="Delimiter">(</span>get_or_insert<span class="Delimiter">(</span>Memory<span class="Delimiter">,</span> addr<span class="Delimiter">))</span> &lt;&lt; <span class="Constant">&quot;) to be in color &quot;</span> &lt;&lt; color &lt;&lt; <span class="Constant">&quot; instead of &quot;</span> &lt;&lt; no_scientific<span class="Delimiter">(</span>get_or_insert<span class="Delimiter">(</span>Memory<span class="Delimiter">,</span> addr+cell_color_offset<span class="Delimiter">))</span> &lt;&lt; <span class="Constant">&quot;</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; end<span class="Delimiter">();</span>
           dump_screen<span class="Delimiter">();</span>
         <span class="Delimiter">}</span>
@@ -347,7 +347,7 @@ put<span class="Delimiter">(</span>Recipe_ordinal<span class="Delimiter">,</span
       ostringstream color_phrase<span class="Delimiter">;</span>
       <span class="Normal">if</span> <span class="Delimiter">(</span>color != -<span class="Constant">1</span><span class="Delimiter">)</span> color_phrase &lt;&lt; <span class="Constant">&quot; in color &quot;</span> &lt;&lt; color<span class="Delimiter">;</span>
       <span class="Normal">if</span> <span class="Delimiter">(</span>Current_scenario &amp;&amp; !Scenario_testing_scenario<span class="Delimiter">)</span> <span class="Delimiter">{</span>
-        <span class="Comment">// genuine test in a mu file</span>
+        <span class="Comment">// genuine test in a .mu file</span>
         raise &lt;&lt; <span class="Constant">&quot;</span><span class="cSpecial">\n</span><span class="Constant">F - &quot;</span> &lt;&lt; Current_scenario<span class="Delimiter">-&gt;</span>name &lt;&lt; <span class="Constant">&quot;: expected screen location (&quot;</span> &lt;&lt; row &lt;&lt; <span class="Constant">&quot;, &quot;</span> &lt;&lt; column &lt;&lt; <span class="Constant">&quot;) to contain &quot;</span> &lt;&lt; curr &lt;&lt; expected_pretty &lt;&lt; color_phrase<span class="Delimiter">.</span>str<span class="Delimiter">()</span> &lt;&lt; <span class="Constant">&quot; instead of &quot;</span> &lt;&lt; no_scientific<span class="Delimiter">(</span>get_or_insert<span class="Delimiter">(</span>Memory<span class="Delimiter">,</span> addr<span class="Delimiter">))</span> &lt;&lt; actual_pretty &lt;&lt; <span class="cSpecial">'\n'</span> &lt;&lt; end<span class="Delimiter">();</span>
         dump_screen<span class="Delimiter">();</span>
       <span class="Delimiter">}</span>
diff --git a/html/091socket.cc.html b/html/091socket.cc.html
index a81f4c79..a3bd7316 100644
--- a/html/091socket.cc.html
+++ b/html/091socket.cc.html
@@ -251,6 +251,7 @@ put<span class="Delimiter">(</span>Recipe_ordinal<span class="Delimiter">,</span
 <span class="Delimiter">}</span>
 <span class="Delimiter">:(before &quot;End Primitive Recipe Implementations&quot;)</span>
 <span class="Normal">case</span> _READ_FROM_SOCKET: <span class="Delimiter">{</span>
+  cerr &lt;&lt; <span class="Constant">&quot;$read-from-socket</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span><span class="Delimiter">;</span>
   <span class="Normal">long</span> <span class="Normal">long</span> <span class="Normal">int</span> x = <span class="Normal">static_cast</span>&lt;<span class="Normal">long</span> <span class="Normal">long</span> <span class="Normal">int</span>&gt;<span class="Delimiter">(</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">));</span>
   socket_t* socket = <span class="Normal">reinterpret_cast</span>&lt;socket_t*&gt;<span class="Delimiter">(</span>x<span class="Delimiter">);</span>
   <span class="Comment">// 1. we'd like to simply read() from the socket</span>
@@ -260,19 +261,22 @@ put<span class="Delimiter">(</span>Recipe_ordinal<span class="Delimiter">,</span
   <span class="Comment">// 3. but poll() will block on EOF, so only use poll() on the very first</span>
   <span class="Comment">// $read-from-socket on a socket</span>
   <span class="Normal">if</span> <span class="Delimiter">(</span>!socket<span class="Delimiter">-&gt;</span>polled<span class="Delimiter">)</span> <span class="Delimiter">{</span>
-    socket<span class="Delimiter">-&gt;</span>polled = <span class="Constant">true</span><span class="Delimiter">;</span>
     pollfd p<span class="Delimiter">;</span>
     bzero<span class="Delimiter">(</span>&amp;p<span class="Delimiter">,</span> <span class="Normal">sizeof</span><span class="Delimiter">(</span>p<span class="Delimiter">));</span>
     p<span class="Delimiter">.</span>fd = socket<span class="Delimiter">-&gt;</span>fd<span class="Delimiter">;</span>
     p<span class="Delimiter">.</span>events = POLLIN | POLLHUP<span class="Delimiter">;</span>
-    <span class="Normal">if</span> <span class="Delimiter">(</span>poll<span class="Delimiter">(</span>&amp;p<span class="Delimiter">,</span> <span class="Comment">/*</span><span class="Comment">num pollfds</span><span class="Comment">*/</span><span class="Constant">1</span><span class="Delimiter">,</span> <span class="Comment">/*</span><span class="Comment">no timeout</span><span class="Comment">*/</span>-<span class="Constant">1</span><span class="Delimiter">)</span> &lt;= <span class="Constant">0</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
+    <span class="Normal">if</span> <span class="Delimiter">(</span>poll<span class="Delimiter">(</span>&amp;p<span class="Delimiter">,</span> <span class="Comment">/*</span><span class="Comment">num pollfds</span><span class="Comment">*/</span><span class="Constant">1</span><span class="Delimiter">,</span> <span class="Comment">/*</span><span class="Comment">timeout</span><span class="Comment">*/</span><span class="Constant">100</span><span class="Comment">/*</span><span class="Comment">ms</span><span class="Comment">*/</span><span class="Delimiter">)</span> &lt;= <span class="Constant">0</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
       raise &lt;&lt; maybe<span class="Delimiter">(</span>current_recipe_name<span class="Delimiter">())</span> &lt;&lt; <span class="Constant">&quot;error in $read-from-socket</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; end<span class="Delimiter">();</span>
       products<span class="Delimiter">.</span>resize<span class="Delimiter">(</span><span class="Constant">2</span><span class="Delimiter">);</span>
       products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>push_back<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">);</span>
       products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">).</span>push_back<span class="Delimiter">(</span><span class="Constant">false</span><span class="Delimiter">);</span>
       <span class="Identifier">break</span><span class="Delimiter">;</span>
     <span class="Delimiter">}</span>
+    cerr &lt;&lt; <span class="Constant">&quot;poll output: &quot;</span> &lt;&lt; p<span class="Delimiter">.</span>revents &lt;&lt; <span class="cSpecial">'\n'</span><span class="Delimiter">;</span>
+    cerr &lt;&lt; <span class="Constant">&quot;setting socket-&gt;polled</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span><span class="Delimiter">;</span>
+    socket<span class="Delimiter">-&gt;</span>polled = <span class="Constant">true</span><span class="Delimiter">;</span>
   <span class="Delimiter">}</span>
+  cerr &lt;&lt; <span class="Constant">&quot;$read-from-socket &quot;</span> &lt;&lt; x &lt;&lt; <span class="Constant">&quot; continuing</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span><span class="Delimiter">;</span>
   <span class="Normal">int</span> bytes = <span class="Normal">static_cast</span>&lt;<span class="Normal">int</span>&gt;<span class="Delimiter">(</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">).</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">));</span>
   <span class="Normal">char</span>* contents = <span class="Normal">new</span> <span class="Normal">char</span>[bytes]<span class="Delimiter">;</span>
   bzero<span class="Delimiter">(</span>contents<span class="Delimiter">,</span> bytes<span class="Delimiter">);</span>
diff --git a/html/092socket.mu.html b/html/092socket.mu.html
index 186c7c3b..72ffa17c 100644
--- a/html/092socket.mu.html
+++ b/html/092socket.mu.html
@@ -33,72 +33,90 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
 </head>
 <body>
 <pre id='vimCodeElement'>
-<span class="Comment"># Wrappers around socket primitives that take a 'local-network' object and are</span>
-<span class="Comment"># thus easier to test.</span>
+<span class="Comment"># Wrappers around socket primitives that are easier to test.</span>
 <span class="Comment">#</span>
-<span class="Comment"># The current semantics of fake port-connections don't match UNIX socket ones,</span>
-<span class="Comment"># but we'll improve them as we learn more.</span>
-
-<span class="muData">container</span> local-network [
-  data:&amp;:@:port-connection
-]
-
-<span class="Comment"># Port connections represent connections to ports on localhost.</span>
-<span class="Comment"># Before passing a local-network object to network functions</span>
-<span class="Comment"># `start-reading-socket` and `start-writing-socket`, add port-connections to</span>
-<span class="Comment"># the local-network.</span>
-<span class="Comment">#</span>
-<span class="Comment"># For reading, `receive-from-socket` will check for a</span>
-<span class="Comment"># port-connection on the port parameter that's been passed in. If there's</span>
-<span class="Comment"># no port-connection for that port, it will return nothing and log an error.</span>
-<span class="Comment"># If there is a port-connection for that port, it will transmit the contents</span>
-<span class="Comment"># to the provided sink.</span>
+<span class="Comment"># To test client operations, use `assume-resources` with a filename that</span>
+<span class="Comment"># begins with a hostname. (Filenames starting with '/' are assumed to be</span>
+<span class="Comment"># local.)</span>
 <span class="Comment">#</span>
-<span class="Comment"># For writing, `start-writing-socket` returns a sink connecting the</span>
-<span class="Comment"># caller to the socket on the passed-in port.</span>
-<span class="muData">container</span> port-connection [
-  port:num
-  contents:text
-]
+<span class="Comment"># To test server operations, just run a real client against localhost.</span>
 
-<span class="muRecipe">def</span> new-port-connection port:num, contents:text<span class="muRecipe"> -&gt; </span>p:&amp;:port-connection [
+<span class="muScenario">scenario</span> example-server-test [
   <span class="Constant">local-scope</span>
-  <span class="Constant">load-ingredients</span>
-  p:&amp;:port-connection<span class="Special"> &lt;- </span>new <span class="Constant">port-connection:type</span>
-  *p<span class="Special"> &lt;- </span>merge port, contents
+  <span class="Comment"># test server without a fake on a random (real) port</span>
+  <span class="Comment"># that way repeatedly running the test will give ports time to timeout and</span>
+  <span class="Comment"># close before reusing them</span>
+  make-random-nondeterministic
+  port:num<span class="Special"> &lt;- </span>random-in-range <span class="Constant">0/real-random-numbers</span>, <span class="Constant">8000</span>, <span class="Constant">8100</span>
+  run [
+    socket:num<span class="Special"> &lt;- </span>$open-server-socket port
+    $print <span class="Constant">[server socket: ]</span>, socket, <span class="Constant">10/newline</span>
+    assert socket, <span class="Constant">[ </span>
+<span class="Constant">F - example-server-test: $open-server-socket failed]</span>
+    $print <span class="Constant">[starting up server routine]</span>, <span class="Constant">10/newline</span>
+    handler-routine:number<span class="Special"> &lt;- </span>start-running serve-one-request socket, example-handler
+  ]
+  $print <span class="Constant">[starting to read from port ]</span>, port, <span class="Constant">10/newline</span>
+  source:&amp;:source:char<span class="Special"> &lt;- </span>start-reading-from-network <span class="Constant">0/real-resources</span>, <span class="Constant">[localhost]</span>, <span class="Constant">[/]</span>, port
+  response:text<span class="Special"> &lt;- </span>drain source
+  <span class="Constant">10</span>:@:char/<span class="Special">raw &lt;- </span>copy *response
+  memory-should-contain [
+    <span class="Constant">10</span>:array:character<span class="Special"> &lt;- </span><span class="Constant">[abc]</span>
+  ]
 ]
-
-<span class="muRecipe">def</span> new-fake-network<span class="muRecipe"> -&gt; </span>n:&amp;:local-network [
+<span class="Comment"># helper just for this scenario</span>
+<span class="muRecipe">def</span> example-handler query:text<span class="muRecipe"> -&gt; </span>response:text [
   <span class="Constant">local-scope</span>
   <span class="Constant">load-ingredients</span>
-  n:&amp;:local-network<span class="Special"> &lt;- </span>new <span class="Constant">local-network:type</span>
-  local-network-ports:&amp;:@:port-connection<span class="Special"> &lt;- </span>new <span class="Constant">port-connection:type</span>, <span class="Constant">0</span>
-  *n<span class="Special"> &lt;- </span>put *n, <span class="Constant">data:offset</span>, local-network-ports
+  <span class="muControl">reply</span> <span class="Constant">[abc]</span>
 ]
 
-<span class="muScenario">scenario</span> write-to-fake-socket [
+<span class="CommentedCode">#? scenario example-client-test [</span>
+<span class="CommentedCode">#?   local-scope</span>
+<span class="CommentedCode">#?   assume-resources [</span>
+<span class="CommentedCode">#?     [example.com/] -&gt; [abc]</span>
+<span class="CommentedCode">#?   ]</span>
+<span class="CommentedCode">#?   run [</span>
+<span class="CommentedCode">#?     source:&amp;:source:char &lt;- start-reading-from-network resources, [example.com], [/]</span>
+<span class="CommentedCode">#?   ]</span>
+<span class="CommentedCode">#?   contents:text &lt;- drain source</span>
+<span class="CommentedCode">#?   10:@:char/raw &lt;- copy *contents</span>
+<span class="CommentedCode">#?   memory-should-contain [</span>
+<span class="CommentedCode">#?     10:address:character &lt;- [abc]</span>
+<span class="CommentedCode">#?   ]</span>
+<span class="CommentedCode">#? ]</span>
+
+<span class="muData">type</span> request-handler = (recipe text<span class="muRecipe"> -&gt; </span>text)
+
+<span class="muRecipe">def</span> serve-one-request socket:num, request-handler:request-handler [
   <span class="Constant">local-scope</span>
-  single-port-network:&amp;:local-network<span class="Special"> &lt;- </span>new-fake-network
-  sink:&amp;:sink:char, writer:num/routine<span class="Special"> &lt;- </span>start-writing-socket single-port-network, <span class="Constant">8080</span>
-  sink<span class="Special"> &lt;- </span>write sink, <span class="Constant">120/x</span>
-  close sink
-  wait-for-routine writer
-  tested-port-connections:&amp;:@:port-connection<span class="Special"> &lt;- </span>get *single-port-network, <span class="Constant">data:offset</span>
-  tested-port-connection:port-connection<span class="Special"> &lt;- </span>index *tested-port-connections, <span class="Constant">0</span>
-  contents:text<span class="Special"> &lt;- </span>get tested-port-connection, <span class="Constant">contents:offset</span>
-  <span class="Constant">10</span>:@:char/<span class="Special">raw &lt;- </span>copy *contents
-  memory-should-contain [
-    <span class="Constant">10</span>:array:character<span class="Special"> &lt;- </span><span class="Constant">[x]</span>
-  ]
+  <span class="Constant">load-ingredients</span>
+  session:num<span class="Special"> &lt;- </span>$accept socket
+  $print <span class="Constant">[server session socket: ]</span>, session, <span class="Constant">10/newline</span>
+  assert session, <span class="Constant">[ </span>
+<span class="Constant">F - example-server-test: $accept failed]</span>
+  contents:&amp;:source:char, sink:&amp;:sink:char<span class="Special"> &lt;- </span>new-channel <span class="Constant">30</span>
+  sink<span class="Special"> &lt;- </span>start-running receive-from-socket session, sink
+  query:text<span class="Special"> &lt;- </span>drain contents
+  response:text<span class="Special"> &lt;- </span>call request-handler, query
+  write-to-socket session, response
+  $close-socket session
 ]
 
 <span class="muRecipe">def</span> start-reading-from-network resources:&amp;:resources, host:text, path:text<span class="muRecipe"> -&gt; </span>contents:&amp;:source:char [
   <span class="Constant">local-scope</span>
   <span class="Constant">load-ingredients</span>
+  $print <span class="Constant">[running start-reading-from-network]</span>, <span class="Constant">10/newline</span>
+  <span class="Delimiter">{</span>
+    port:num, port-found?:boolean<span class="Special"> &lt;- </span><span class="Constant">next-ingredient</span>
+    <span class="muControl">break-if</span> port-found?
+    port<span class="Special"> &lt;- </span>copy <span class="Constant">80/http-port</span>
+  <span class="Delimiter">}</span>
   <span class="Delimiter">{</span>
     <span class="muControl">break-if</span> resources
     <span class="Comment"># real network</span>
-    socket:num<span class="Special"> &lt;- </span>$open-client-socket host, <span class="Constant">80/http-port</span>
+    socket:num<span class="Special"> &lt;- </span>$open-client-socket host, port
+    $print <span class="Constant">[client socket: ]</span>, socket, <span class="Constant">10/newline</span>
     assert socket, <span class="Constant">[contents]</span>
     req:text<span class="Special"> &lt;- </span>interpolate <span class="Constant">[GET _ HTTP/1.1]</span>, path
     request-socket socket, req
@@ -137,70 +155,72 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
   $write-to-socket socket, <span class="Constant">10/lf</span>
 ]
 
-<span class="muRecipe">def</span> start-writing-socket network:&amp;:local-network, port:num<span class="muRecipe"> -&gt; </span>sink:&amp;:sink:char, routine-id:num [
-  <span class="Constant">local-scope</span>
-  <span class="Constant">load-ingredients</span>
-  source:&amp;:source:char, sink:&amp;:sink:char<span class="Special"> &lt;- </span>new-channel <span class="Constant">30</span>
-  <span class="Delimiter">{</span>
-    <span class="muControl">break-if</span> network
-    socket:num<span class="Special"> &lt;- </span>$open-server-socket port
-    session:num<span class="Special"> &lt;- </span>$accept socket
-    <span class="Comment"># TODO Create channel implementation of write-to-socket.</span>
-    <span class="muControl">return</span> sink, <span class="Constant">0/routine-id</span>
-  <span class="Delimiter">}</span>
-  <span class="Comment"># fake network</span>
-  routine-id<span class="Special"> &lt;- </span>start-running transmit-to-fake-socket network, port, source
-]
+<span class="CommentedCode">#? def start-writing-socket network:&amp;:local-network, port:num -&gt; sink:&amp;:sink:char, routine-id:num [</span>
+<span class="CommentedCode">#?   local-scope</span>
+<span class="CommentedCode">#?   load-ingredients</span>
+<span class="CommentedCode">#?   source:&amp;:source:char, sink:&amp;:sink:char &lt;- new-channel 30</span>
+<span class="CommentedCode">#?   {</span>
+<span class="CommentedCode">#?     break-if network</span>
+<span class="CommentedCode">#?     socket:num &lt;- $open-server-socket port</span>
+<span class="CommentedCode">#?     session:num &lt;- $accept socket</span>
+<span class="CommentedCode">#?     # TODO Create channel implementation of write-to-socket.</span>
+<span class="CommentedCode">#?     return sink, 0/routine-id</span>
+<span class="CommentedCode">#?   }</span>
+<span class="CommentedCode">#?   # fake network</span>
+<span class="CommentedCode">#?   routine-id &lt;- start-running transmit-to-fake-socket network, port, source</span>
+<span class="CommentedCode">#? ]</span>
 
-<span class="muRecipe">def</span> transmit-to-fake-socket network:&amp;:local-network, port:num, source:&amp;:source:char<span class="muRecipe"> -&gt; </span>network:&amp;:local-network, source:&amp;:source:char [
-  <span class="Constant">local-scope</span>
-  <span class="Constant">load-ingredients</span>
-  <span class="Comment"># compute new port connection contents</span>
-  buf:&amp;:buffer<span class="Special"> &lt;- </span>new-buffer <span class="Constant">30</span>
-  <span class="Delimiter">{</span>
-    c:char, done?:bool, source<span class="Special"> &lt;- </span>read source
-    <span class="muControl">break-unless</span> c
-    buf<span class="Special"> &lt;- </span>append buf, c
-    <span class="muControl">break-if</span> done?
-    <span class="muControl">loop</span>
-  <span class="Delimiter">}</span>
-  contents:text<span class="Special"> &lt;- </span>buffer-to-array buf
-  new-port-connection:&amp;:port-connection<span class="Special"> &lt;- </span>new-port-connection port, contents
-  <span class="Comment"># Got the contents of the channel, time to write to fake port.</span>
-  i:num<span class="Special"> &lt;- </span>copy <span class="Constant">0</span>
-  port-connections:&amp;:@:port-connection<span class="Special"> &lt;- </span>get *network, <span class="Constant">data:offset</span>
-  len:num<span class="Special"> &lt;- </span>length *port-connections
-  <span class="Delimiter">{</span>
-    done?:bool<span class="Special"> &lt;- </span>greater-or-equal i, len
-    <span class="muControl">break-if</span> done?
-    current:port-connection<span class="Special"> &lt;- </span>index *port-connections, i
-    current-port:num<span class="Special"> &lt;- </span>get current, <span class="Constant">port:offset</span>
-    ports-match?:bool<span class="Special"> &lt;- </span>equal current-port, port
-    i<span class="Special"> &lt;- </span>add i, <span class="Constant">1</span>
-    <span class="muControl">loop-unless</span> ports-match?
-    <span class="Comment"># Found an existing connection on this port, overwrite.</span>
-    put-index *port-connections, i, *new-port-connection
-    <span class="muControl">reply</span>
-  <span class="Delimiter">}</span>
-  <span class="Comment"># Couldn't find an existing connection on this port, initialize a new one.</span>
-  new-len:num<span class="Special"> &lt;- </span>add len, <span class="Constant">1</span>
-  new-port-connections:&amp;:@:port-connection<span class="Special"> &lt;- </span>new <span class="Constant">port-connection:type</span>, new-len
-  put *network, <span class="Constant">data:offset</span>, new-port-connections
-  i:num<span class="Special"> &lt;- </span>copy <span class="Constant">0</span>
-  <span class="Delimiter">{</span>
-    done?:bool<span class="Special"> &lt;- </span>greater-or-equal i, len
-    <span class="muControl">break-if</span> done?
-    tmp:port-connection<span class="Special"> &lt;- </span>index *port-connections, i
-    put-index *new-port-connections, i, tmp
-  <span class="Delimiter">}</span>
-  put-index *new-port-connections, len, *new-port-connection
-]
+<span class="CommentedCode">#? def transmit-to-fake-socket network:&amp;:local-network, port:num, source:&amp;:source:char -&gt; network:&amp;:local-network, source:&amp;:source:char [</span>
+<span class="CommentedCode">#?   local-scope</span>
+<span class="CommentedCode">#?   load-ingredients</span>
+<span class="CommentedCode">#?   # compute new port connection contents</span>
+<span class="CommentedCode">#?   buf:&amp;:buffer &lt;- new-buffer 30</span>
+<span class="CommentedCode">#?   {</span>
+<span class="CommentedCode">#?     c:char, done?:bool, source &lt;- read source</span>
+<span class="CommentedCode">#?     break-unless c</span>
+<span class="CommentedCode">#?     buf &lt;- append buf, c</span>
+<span class="CommentedCode">#?     break-if done?</span>
+<span class="CommentedCode">#?     loop</span>
+<span class="CommentedCode">#?   }</span>
+<span class="CommentedCode">#?   contents:text &lt;- buffer-to-array buf</span>
+<span class="CommentedCode">#?   new-port-connection:&amp;:port-connection &lt;- new-port-connection port, contents</span>
+<span class="CommentedCode">#?   # Got the contents of the channel, time to write to fake port.</span>
+<span class="CommentedCode">#?   i:num &lt;- copy 0</span>
+<span class="CommentedCode">#?   port-connections:&amp;:@:port-connection &lt;- get *network, data:offset</span>
+<span class="CommentedCode">#?   len:num &lt;- length *port-connections</span>
+<span class="CommentedCode">#?   {</span>
+<span class="CommentedCode">#?     done?:bool &lt;- greater-or-equal i, len</span>
+<span class="CommentedCode">#?     break-if done?</span>
+<span class="CommentedCode">#?     current:port-connection &lt;- index *port-connections, i</span>
+<span class="CommentedCode">#?     current-port:num &lt;- get current, port:offset</span>
+<span class="CommentedCode">#?     ports-match?:bool &lt;- equal current-port, port</span>
+<span class="CommentedCode">#?     i &lt;- add i, 1</span>
+<span class="CommentedCode">#?     loop-unless ports-match?</span>
+<span class="CommentedCode">#?     # Found an existing connection on this port, overwrite.</span>
+<span class="CommentedCode">#?     put-index *port-connections, i, *new-port-connection</span>
+<span class="CommentedCode">#?     reply</span>
+<span class="CommentedCode">#?   }</span>
+<span class="CommentedCode">#?   # Couldn't find an existing connection on this port, initialize a new one.</span>
+<span class="CommentedCode">#?   new-len:num &lt;- add len, 1</span>
+<span class="CommentedCode">#?   new-port-connections:&amp;:@:port-connection &lt;- new port-connection:type, new-len</span>
+<span class="CommentedCode">#?   put *network, data:offset, new-port-connections</span>
+<span class="CommentedCode">#?   i:num &lt;- copy 0</span>
+<span class="CommentedCode">#?   {</span>
+<span class="CommentedCode">#?     done?:bool &lt;- greater-or-equal i, len</span>
+<span class="CommentedCode">#?     break-if done?</span>
+<span class="CommentedCode">#?     tmp:port-connection &lt;- index *port-connections, i</span>
+<span class="CommentedCode">#?     put-index *new-port-connections, i, tmp</span>
+<span class="CommentedCode">#?   }</span>
+<span class="CommentedCode">#?   put-index *new-port-connections, len, *new-port-connection</span>
+<span class="CommentedCode">#? ]</span>
 
 <span class="muRecipe">def</span> receive-from-socket socket:num, sink:&amp;:sink:char<span class="muRecipe"> -&gt; </span>sink:&amp;:sink:char [
   <span class="Constant">local-scope</span>
   <span class="Constant">load-ingredients</span>
   <span class="Delimiter">{</span>
+    $print <span class="Constant">[read-from-socket ]</span>, socket, <span class="Constant">10/newline</span>
     req:text, eof?:bool<span class="Special"> &lt;- </span>$read-from-socket socket, <span class="Constant">4096/bytes</span>
+    <span class="muControl">loop-unless</span> req
     bytes-read:num<span class="Special"> &lt;- </span>length *req
     i:num<span class="Special"> &lt;- </span>copy <span class="Constant">0</span>
     <span class="Delimiter">{</span>
diff --git a/html/101run_sandboxed.cc.html b/html/101run_sandboxed.cc.html
index c79fb1d4..7b5da51b 100644
--- a/html/101run_sandboxed.cc.html
+++ b/html/101run_sandboxed.cc.html
@@ -34,8 +34,8 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
 </head>
 <body>
 <pre id='vimCodeElement'>
-<span class="Comment">//: Helper for various programming environments: run arbitrary mu code and</span>
-<span class="Comment">//: return some result in string form.</span>
+<span class="Comment">//: Helper for various programming environments: run arbitrary Mu code and</span>
+<span class="Comment">//: return some result in text form.</span>
 
 <span class="Delimiter">:(scenario run_interactive_code)</span>
 <span class="muRecipe">def</span> main [
diff --git a/html/999spaces.cc.html b/html/999spaces.cc.html
index f72dcc82..cc8053e4 100644
--- a/html/999spaces.cc.html
+++ b/html/999spaces.cc.html
@@ -38,7 +38,7 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
 <span class="Comment">//:</span>
 <span class="Comment">//: Location 0 - unused (since it can help uncover bugs)</span>
 <span class="Comment">//: Locations 1-899 - reserved for tests</span>
-<span class="Comment">//: Locations 900-999 - reserved for predefined globals in mu scenarios, like keyboard, screen, etc.</span>
+<span class="Comment">//: Locations 900-999 - reserved for predefined globals in Mu scenarios, like keyboard, screen, etc.</span>
 <span class="Delimiter">:(before &quot;End Setup&quot;)</span>
 assert<span class="Delimiter">(</span>Max_variables_in_scenarios == <span class="Constant">900</span><span class="Delimiter">);</span>
 <span class="Comment">//: Locations 1000 ('Reserved_for_tests') onward - available to the allocator in chunks of size Initial_memory_per_routine.</span>
@@ -56,7 +56,7 @@ assert<span class="Delimiter">(</span>Next_recipe_ordinal == <span class="Consta
 <span class="SalientComment">//:: Depths for tracing</span>
 <span class="Comment">//:</span>
 <span class="Comment">//: 0 - unused</span>
-<span class="Comment">//: 1-100 - app-level trace statements in mu</span>
+<span class="Comment">//: 1-100 - app-level trace statements in Mu</span>
 <span class="Comment">//: 101-9989 - call-stack statements (mostly label run)</span>
 assert<span class="Delimiter">(</span>Initial_callstack_depth == <span class="Constant">101</span><span class="Delimiter">);</span>
 assert<span class="Delimiter">(</span>Max_callstack_depth == <span class="Constant">9989</span><span class="Delimiter">);</span>
diff --git a/html/chessboard.mu.html b/html/chessboard.mu.html
index 7f89f457..5b24345b 100644
--- a/html/chessboard.mu.html
+++ b/html/chessboard.mu.html
@@ -43,8 +43,8 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
 
   <span class="Comment"># The chessboard function takes keyboard and screen objects as 'ingredients'.</span>
   <span class="Comment">#</span>
-  <span class="Comment"># In mu it is good form (though not required) to explicitly show the</span>
-  <span class="Comment"># hardware you rely on.</span>
+  <span class="Comment"># In Mu it is good form (though not required) to explicitly state what</span>
+  <span class="Comment"># hardware a function needs.</span>
   <span class="Comment">#</span>
   <span class="Comment"># Here the console and screen are both 0, which usually indicates real</span>
   <span class="Comment"># hardware rather than a fake for testing as you'll see below.</span>
@@ -53,7 +53,7 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
   close-console  <span class="Comment"># clean up screen, keyboard and mouse</span>
 ]
 
-<span class="SalientComment">## But enough about mu. Here's what it looks like to run the chessboard program.</span>
+<span class="SalientComment">## But enough about Mu. Here's what it looks like to run the chessboard program.</span>
 
 <span class="muScenario">scenario</span> print-board-and-read-move [
   <span class="Constant">local-scope</span>
diff --git a/html/edit/001-editor.mu.html b/html/edit/001-editor.mu.html
index 2f07e8eb..b6ba98e8 100644
--- a/html/edit/001-editor.mu.html
+++ b/html/edit/001-editor.mu.html
@@ -399,7 +399,7 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
   ]
 ]
 
-<span class="Comment"># just a little color for mu code</span>
+<span class="Comment"># just a little color for Mu code</span>
 
 <span class="muScenario">scenario</span> render-colors-comments [
   <span class="Constant">local-scope</span>
diff --git a/html/edit/005-sandbox.mu.html b/html/edit/005-sandbox.mu.html
index 80650ce9..825a64ee 100644
--- a/html/edit/005-sandbox.mu.html
+++ b/html/edit/005-sandbox.mu.html
@@ -219,7 +219,7 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
 <span class="Constant">  &lt;run-sandboxes-end&gt;</span>
 ]
 
-<span class="Comment"># copy code from recipe editor, persist, load into mu</span>
+<span class="Comment"># copy code from recipe editor, persist to disk, load</span>
 <span class="Comment"># replaced in a later layer (whereupon errors-found? will actually be set)</span>
 <span class="muRecipe">def</span> update-recipes env:&amp;:environment, screen:&amp;:screen<span class="muRecipe"> -&gt; </span>errors-found?:bool, env:&amp;:environment, screen:&amp;:screen [
   <span class="Constant">local-scope</span>
diff --git a/html/edit/011-errors.mu.html b/html/edit/011-errors.mu.html
index e31fc3e9..f3a9b566 100644
--- a/html/edit/011-errors.mu.html
+++ b/html/edit/011-errors.mu.html
@@ -39,7 +39,7 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
   recipe-errors:text
 ]
 
-<span class="Comment"># copy code from recipe editor, persist, load into mu, save any errors</span>
+<span class="Comment"># copy code from recipe editor, persist to disk, load, save any errors</span>
 <span class="muRecipe">def!</span> update-recipes env:&amp;:environment, screen:&amp;:screen<span class="muRecipe"> -&gt; </span>errors-found?:bool, env:&amp;:environment, screen:&amp;:screen [
   <span class="Constant">local-scope</span>
   <span class="Constant">load-ingredients</span>
diff --git a/html/lambda-to-mu.mu.html b/html/lambda-to-mu.mu.html
index 131d0122..7ffbe91a 100644
--- a/html/lambda-to-mu.mu.html
+++ b/html/lambda-to-mu.mu.html
@@ -35,7 +35,7 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
 <body>
 <pre id='vimCodeElement'>
 <span class="SalientComment">## experimental compiler to translate programs written in a generic</span>
-<span class="SalientComment">## expression-oriented language called 'lambda' into mu</span>
+<span class="SalientComment">## expression-oriented language called 'lambda' into Mu</span>
 
 <span class="muScenario">scenario</span> convert-lambda [
   run [
@@ -600,7 +600,7 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
   ]
 ]
 
-<span class="SalientComment">## convert tree of cells to mu text</span>
+<span class="SalientComment">## convert tree of cells to Mu text</span>
 
 <span class="muRecipe">def</span> to-mu in:&amp;:cell<span class="muRecipe"> -&gt; </span>out:text [
   <span class="Constant">local-scope</span>