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Richard Rhodes' book on the physics and history of science behind the bomb goes to some length to explain just how much information about fission and fusion is a matter of public record. Yet, small details remain redacted. mostly if I recall correctly, about 'levitated cores' in fission bombs, and the exact composition of the 'lens' in a fissile igniter for a fusion bomb.

Another source I believe comments that with one infinitesimal change to fundamental universal constants, fission and fusion would be impossible except at stellar scale. Odd, that we live in a universe where the boundary between existence and annihilation is so thin, yet we continue to exist.

Personally, I think the proof here is a divide-by-zero instance. Conceptually, a design of information that can be communicated, such that it cannot be comprehended or enacted but its consequence ensues. Isn't that a kind of meme?




> Odd, that we live in a universe where the boundary between existence and annihilation is so thin, yet we continue to exist.

If the universal constants were different, there could well be a different form of life making the comment instead.

For example, see Greg Egan's scifi book The Clockwork Rocket, which features a universe that runs on fundamentally different principles but that has broadly recognizable forms of life.




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