We’ll all face the heat death: stars burn out, galaxies drift apart and black holes vanish, leaving an ice-cold, empty cosmos. But there’s a loophole—by embracing super-efficient, reversible computing (and even tapping the quantum vacuum for energy), you can stretch every joule into countless tiny calculations. Dial down your processing speed as the universe cools, and you can, in theory, keep “thinking” forever.
It’s basically Dyson’s “eternal intelligence” revived: use ever-slower cycles and ever-smaller energy quanta to eke out infinite subjective time from finite resources. So even in a silent, starless void, a trickle of computation—and life—could persist forever.
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