Today I learned that Dan Bricklin of VisiCalc fame worked on the arbitrary-precision integer arithmetic package of Multics Lisp: https://www.softwarepreservation.org/projects/LISP/maclisp_family/
#VisiCalc #Apple #AppleII #RetroComputing #MacLisp #Lisp #Multics

#meta
@amszmidt is right to Balkanize #lisp and #scheme .

Whatever lisp was, it died out in the 80s, survived by rnrs and a portability ansi standard to the 32bit x86 era.

Now that the MIT CADR https://tumbleweed.nu/lm-3/ and (medley) dmachine https://interlisp.org/ are back, #CommonLisp should be deported back to #maclisp and #interlisp and used as a portability standard.

In contrast rnrs scheme https://scheme.org -> (incf n) rnrs scheme https://scheme.org