00100	                         STANFORD UNIVERSITY
00200	                     COMPUTER SCIENCE DEPARTMENT
00300	                             May 8, 1972
00400	
00500	
00600	Mr. David R. Calhoun, Editor
00700	BRITANNICA YEARBOOK OF SCIENCE AND THE FUTURE
00800	Encyclopedia Britannica
00900	425 North Michigan Avenue
01000	Chicago, Illinois  60611
01100	
01200	Dear Mr. Calhoun:
01300	
01400		Enclosed is a  revised  version  of  my  article  on  robots.
01500	Unfortunately,  it  only  meets  a  few  of your requests for changes
01600	partly because of lack of time, but mainly because I don't see a good
01700	way to carry out your requests.
01800	
01900		Specifically:
02000	
02100		1.  I agree that it might be better to mention the desire for
02200	domestic  servants  in  the  beginning,  but  it  seems  to  me  that
02300	understanding the programming requirements for such a servant depends
02400	on the rest of the article.
02500	
02600		2. I agree to setting off the discussion of  science  fiction
02700	in a sidebar.  You do it.
02800	
02900		3. No comment.
03000	
03100		4. I have added a bit about the game of Kalah and the M.I.T.-
03200	Stanford program that played it.  I enclose a Xerox of the  rules  in
03300	case you want to make a sidebar of them.
03400	
03500		5.  I  don't  have  an  example of the General Problem Solver
03600	formulation at hand.  I  have  enclosed  an  example  of  logical
03700	formulation  suitable  for  a sidebar, but it may be too long for you
03800	even without an adequate explanation of the terms used.  With such an
03900	explanation, it would be twice as long.
04000	
04100		6. I don't see how to do what you request.
04200	
04300		I  am  sorry  not to have met more of your requests.  Perhaps
04400	you can make some changes yourself.  I don't regard the present  text
04500	as  sacred,  but  I  will be glad to comment on any revisions you may
04600	propose.
04700	
04800	
04900					Sincerely yours,
05000	
05100	
05200					John McCarthy