I had to puzzle it out the first few times. Then I found in a college course on hardware design that the rule was named after some guy, which I found gratifying

I had to puzzle it out the first few times. Then I found in a college course on hardware design that the rule was named after some guy, which I found gratifying. I remember having quite a time doing a doubly-linked-list, the first time I had to think it through. Always wondered why that wasn't named after some bloke . . . :-)