3 ms·
See https://news.ycombinator.com/item?id=42660606 https://news.ycombinator.com/item?id=42660606 (yesterday). Writing is not a reversible computation, therefore
by cryptonector 2y ago
See https://news.ycombinator.com/item?id=42660606 https://news.ycombinator.com/item?id=42660606 (yesterday). Writing is not a reversible computation, therefore it requires an increase in entropy.
- A_D_E_P_T 2y agoYou write something at T, under normal background conditions of increasing entropy. Entropy at some T+n fluctuates to a minimum, and at T+n+1 begins to rise from that minimum. None of this appears to necessarily reverse what you've written at T?
- cryptonector 2y agoIf you've made some state change that amounts to irreversibly changing information, then you've increased entropy, full stop. I believe TFA is obviously correct that closed timelike loops involve forgetting, thus no time travel paradoxes.