Re: [math-fun] Life's Garden of Eden

I think that Steve Ward found the argument showing that a Life GOE existed in a 39^2, based on a 13x13 array of 3x3 squares. Rich ----- Quoting Bill Gosper <billgosper@gmail.com>:

acw>

I read this, and it is, unfortunately, not the discussion of the proof that I remembered. Could it have been that Conway presented the proof at the talk I went to? I know it was discussed. His "parlor trick" around then was to challenge people to draw Life patterns, and he would construct a predecessor. He was uncannily good at it.