"Well, Mr. Frankel, who started this program, began to suffer from the computer disease that anybody who works with computers now knows about. It's a very serious disease and it interferes completely with the work. The trouble with computers is you play with them. They are so wonderful. You have these switches--if it's an even number you do this, if it's an odd number you do that--and pretty soon you can do more and more elaborate things if you are clever enough, on one machine."
Straight from the man himself. Page 79 of [PDF warning] http://buffman.net/ebooks/Richard_P_Feynman-Surely_Youre_Jok...