[birktj]

Isn't there also a fundamental equivalence between information and energy in physics? And so is there not a lower limit to the amount of energy required to compute a SHA256 hash of a certain number of bytes, and by extension mine a bitcoin block?

[dogma1138]

Yes but only for irreversible computation https://en.m.wikipedia.org/wiki/Landauer%27s_principle

[deepnotderp]

Even for reversible computation the Margolus-Levitin theorem has been hypothesized

[dogma1138]

Isn’t the Margolus Levitin theorem slightly different?

As in while it puts the maximum bound of amount of computation per J it doesn’t enforces a requirement that the entropy increase needs to be through a non-information degree of freedom as in heat.