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␈↓ ↓H␈↓␈↓βS␈↓∧ Artificial Intelligence Laboratory, STANFORD UNIVERSITY, Stanford, California 94305
␈↓ ↓H␈↓∧Telephone 415 497-4430␈↓ 	ISeptember 29, 1975




␈↓ ↓H␈↓Professor Peter W. Frey
␈↓ ↓H␈↓CRESAP Neuroscience Laboratory
␈↓ ↓H␈↓Northwestern University
␈↓ ↓H␈↓2021 Sheridan Road
␈↓ ↓H␈↓Evanston, Illinois 60201

␈↓ ↓H␈↓Dear Professor Frey:

␈↓ ↓H␈↓A␈αreview␈αof␈αNewborn's␈αbook␈αis␈αnot␈αyet␈αwritten,␈αbut␈αa␈αmain␈αitem␈αwill␈αbe␈αa␈αcomplaint␈αthat␈αit␈αtreats
␈↓ ↓H␈↓computer␈α∞chess␈α
entirely␈α∞from␈α
a␈α∞sporting␈α
point␈α∞of␈α
view,␈α∞and␈α
no␈α∞more␈α
analysis␈α∞is␈α
given␈α∞of␈α∞why␈α
a
␈↓ ↓H␈↓computer␈α
programmer␈αmakes␈α
a␈α
particular␈αmove␈α
than␈α
is␈αgiven␈α
of␈α
why␈αa␈α
human␈α
chess␈αplayer␈α
makes
␈↓ ↓H␈↓a␈αmove.␈α This␈αis␈αstrange␈α
since␈αthe␈αinnards␈αof␈αcomputer␈α
programs␈αare␈αobservable.␈α To␈αsome␈α
extent,
␈↓ ↓H␈↓this␈αis␈αthe␈αfault␈αof␈αthe␈αwriter␈αof␈αthe␈αprograms␈αand␈αnot␈αmerely␈αNewborn,␈αbut␈αhis␈αbook␈αcontains␈αno
␈↓ ↓H␈↓analysis of the problems involved.

␈↓ ↓H␈↓I hope you will avoid his error, but I think it will be a lot of work.


␈↓ ↓H␈↓Sincerely,



␈↓ ↓H␈↓John McCarthy
␈↓ ↓H␈↓Director
␈↓ ↓H␈↓Professor of Computer Science