Interesting. I would have thought that a reversible computation would produce a new algorithm with the domain and range swapped. Naming truly is the final boss of computation. But now I see it's one-step backtracking in a way that allows saving energy, supposedly. Very much still reversible, but definitely nothing remotely comparable to time travel. "uncomputation" was the much, much better name.

Edit: i see now. Well, this is much less exciting than I thought. Still, I'm excited for all the other people excited.

Anything to get the PPM co2 down is exciting although this probably has no effect (because Jevon) and we just need more trees, wind and solar