3 ms·
In some older discussion [2], I linked to a 1987 article in the Scientific American [1] that explains this much more clearly, I think: [1] https://ecee.colorad
by FabHK 6y ago
In some older discussion [2], I linked to a 1987 article in the Scientific American [1] that explains this much more clearly, I think:
[1] https://ecee.colorado.edu/~ecen4555/SourceMaterial/DemonsEnginesAndSecondLaw87.pdf https://ecee.colorado.edu/~ecen4555/SourceMaterial/DemonsEng...
(Bonus: an ad for a "letter quality daisy wheel word processor" from Brother, and one for the new Tandy 4000 ("Put a Tandy 4000 on your desk and unleash the incredible power of the 32-bit, 16-megaherz 80386 microprocessor."))
[2] https://news.ycombinator.com/item?id=22138224 https://news.ycombinator.com/item?id=22138224
- ArtWomb 6y agoBrother WP looks like it sells for ~$200 on eBay. But I think a mint Tandy 4000 would really be a museum piece ;) Going down to the level of a quantum maxwell demon, a superconducting qubit, a single photon. One still finds measurable dissipation. An inherent non-linearity of optics in a medium. If the entire system could be constructed of light, manipulated by light energy. we could perhaps see a memory entropy lower than the systems ;)