--- a/CR_preface.txt	Thu Nov 14 13:11:09 2024 -0500
+++ b/CR_preface.txt	Mon Nov 18 11:20:57 2024 +0000
@@ -1,10 +1,14 @@
 Born December 1949.
 
 After starting a degree at Oberlin in 1967, dropped out without
-completing 3rd year.
+completing 3rd year.  Torn between religion and physics as an
+undergraduate.
+
 
-Out to BC with Katy in the fall of 1969, back to Cambridge and
-Philadelphia to see respective families.
+Out to BC with Katy Tolles (Father Frederick Barnes Tolles,
+Philadelphia Quaker / historian) in the fall of 1969, visited Argenta,
+a Quaker settlement in Argenta BC, back to Cambridge and Philadelphia
+to see respective families.
 
 Had to get out of the US (draft), so that winter took over the old job
 of his brother Arnold in an NRC high-energy Physics lab, living with
@@ -77,8 +81,6 @@
 [CPSR?]
 
 ----------
-Torn between religion and physics as an undergraduate.
-
 MIT, 1974++ MSc thesis _Levels, Layers and Planes_, about
 architectural properties of computer science
 There are no particulars in physics [ref. deiexis discussion, where is
@@ -241,6 +243,13 @@
 A delicagte dance -- why have I asked you [HST] to write this, not
 someone else.  Because you were there from the beginning.
 
+NB on p. 24 of CR 0.93:
+
+  Inevitably, as noted in the Preface, it follows that all statements
+  made here are vulnerable to being differentially interpreted by
+  diverse audiences—even those to which the book is primarily
+  addressed.
+
 ------------
 Foundations of/Philosophy of Computation
 
@@ -253,5 +262,50 @@
 project onto the effective [? - it's not that everything is
 term-rewriting, it's more like ].
 
+-------------------
+
+On first reading, before even finishing the introduction, as asked
+Brian what "effective" meant, since it seemed very important, and
+appeared to be being used in some technical sense, and it was not
+immediately obvious to me how that related to my understanding(s) of
+the word as used in ordinary language.
 
 
+------------
+
+BCS was born in Montreal, Canada, on 1 December 1949, growing up there
+and later in Cambridge, Massachusetts, he remains a Canadian citizen.
+Multiple allegiances, sometimes conflicting but mostly complementary,
+have characterized both his personal and intellectual life ever since.
+
+He started undergraduate study at Oberlin College in Ohio in 1967,
+where his interests included both physics and religion but left after
+only two years, travelling first to visit the Quaker community Argenta,
+British Columbia, and ending up in Ottawa where he started work as a
+programmer at the Division of Physics laboratory of the National
+Research Council of Canada, working on a project jointly involving
+Fermilab in Chicago and the Lawrence Research Laboratory in Berkeley.
+Working at all three sites, he programmed PDP 9 and PDP 15
+microcomputers, in machine language, for experimental control and data
+gathering.
+
+When the project ended he moved back to the family home in Cambridge,
+and began taking classes at the Massachusetts Institute of Technology
+(MIT), with an interest in what was then knows as Social Inquiry, in
+particular the politics of high technology.  But in quickly became
+clear to him that the understanding of computing that the social
+scientists were critiquing was not the computing that I knew as a
+programmer, what he later came to refer to as "computing in the wild".
+He realised that he needed to get clear on what computing really is,
+so that I could legitimately critique it. He thought he had to go into
+the heart of the beast, as it were, so applied for the PhD program in
+Electrical Engineering and Computer Science at MIT and began taking
+classes.
+
+When the MIT administration discovered he didn't have an undergraduate
+degree, Patrick Winston, the newly-appointed head of the Artificial
+Intelligence Laboratory, gave Smith an informal oral exam in topics
+from the MIT undergraduate computer science curriculum and awarded him
+the credits necessary for a degree, clearing the way for his admission
+to the graduate program.
+