4 ms·

I was confused at first until I read how Conway first described it. His words are quoted at the end. It makes more sense when he describes it - something he had

• afterburner 5y ago
  > I expect that there is a still life of such delicacy that in some essential sense it is its only ancestor – though obviously that sense must allow for fading configurations outside it, and probably allow for more. Yes, that's was clearer to me too