Unlike the chess game, though, in [which] the rules become more complicated as you go along, in physics, when you discover new things, it looks more simple. It appears on the whole to be more complicated because we learn about a greater experience–that is, we learn about more particles and new things–and so the laws look complicated again. But if you realize all the time what’s kind of wonderful–that is, if we expand our experience into wilder and wilder regions of experience–every once in a while we have these integrations when everything’s pulled together into a unification, in which it
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