Morgan is in the final crunch of finishing her dissertation draft, so
Chris's brother Steve Webber joins us for a special "nerdout":
analyzing the dual nature of fuzzy vs crisp systems! From physics to
biology, from programming languages to human languages, the duality of
fuzzy and crisp is everpresent.

Yes, this really is what Chris and Steve sound like whenever they get
together...

Links:

Structure and Interpretation of Computer Programs
(but this version looks better on the web)
and the 1980s lectures
(also on Internet Archive
but the YouTube uploads are more recent and higher quality)

Lisp and Scheme

Lambda Calculus

The Little Schemer

The Most Beautiful Program Ever Written by William Byrd

Lisp 1.5 programmer's manual, which also now has a lovely reprint for sale (see Appendix B for Lisp in Lisp, albeit in m-expression rather than s-expression format... m-expressions never took on)

Javascript: The Good Parts

The narcissism of small differences

To Mock a Mockingbird
by Raymond Smullyan. Also, presumably not the link Steve had shared with Chris
back in the day (but maybe it was?) but here's a more math'y breakdown of
some of the ideas, To Dissect a Mockingbird: A Graphical Notation for the Lambda Calculus with Animated Reduction

Duality (mathematics)

Fuzzy and crisp sets

Neats and scruffies
(see also our previous episode about machine learning)

Alan Watts' lecture on "prickles and goo"

Carcinisation
(convergent evolution on "crabs")

Lisp vs APL: "Mud and Diamonds"

Guix

Jonathan Rees's website

Lojban,
and here's a pretty good Lojban intro

The infamous Lojban "bear goo"
debate