TIL the second law of thermodynamics says enumerating all the possible 256-bit encryption keys (even without attempting them) would require at minimum all of the energy of 137 billion supernovas.
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Replying to @PhysicalPolitik
Apparently it's derived from Landauer's principle which is a consequence of the second law, but I am no physicist, so ¯\_(ツ)_/¯
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Replying to @PhysicalPolitik @pwnallthethings
Just enumerating should be reversible; there should be other causes limiting it though.
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Replying to @PhysicalPolitik @pwnallthethings
I don't think it applies if there's an operation that can undo the change. Inc has an inverse dec.
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But maybe this doesn't apply because your position in the enumeration is also state?
3:29 PM - 26 Nov 2017
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