alt Hacker NewsOnly true for our current computers and not true with reversible computing. With reversible computing you can use electricity to perform a calculation and then "push" that electricity back into a battery or a capacitor instead of dumping it to the environment. It's still a huge challenge, but there is a recent promising attempt:
"British reversible computing startup Vaire has demonstrated an adiabatic reversible computing system with net energy recovery"
https://www.eetimes.com/vaire-demos-energy-recovery-with-rev...
Short introduction video to reversible computing:
Actually pretty cool - I was about to comment “nice perpetual motion machine” but looked into a bit more and it’s much more interesting than that (well, a real perpetual motion machine would be interesting but…)
Thanks for posting. Pretty cool.