The assumption that energy is required to perform computation is

Question

The assumption that energy is required to perform computation is

based on Landauer’s principle, described in 1961. However, it was discovered in the 1970’s and early 1980’s that this applied only to non-reversible computation. Any computation can be constructed, in theory, as a reversible computation, except for copying out the answer.

I had a brief face to face conversation with Ed Fredkin, the inventor of the Fredkin gate, a reversible logic gate. Fredkin said something like: “Of course it takes no energy to do computation. Otherwise, how would the universe calculate its own future?”

https://en.wikipedia.org/wiki/Reversible_computing

Thus, at least in theory, the universe would not need to run out of energy breaking 256 bit encryption, or mining bitcoin for that matter. 🙂

#bch #bitcoincash #cryptocurrency #english

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10.11.2024

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bitcoincashautist · Accepted Answer

bitcoincashautist

I follow this guy on X, he talks about reversible computing a lot, interesting guy https://x.com/MikePFrank

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14 дней назад

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The assumption that energy is required to perform computation is

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