> whose description is based on real numbers. Yes, I get it. But you mean real real numbers from the real world, not the representations used in computers. Rea

> whose description is based on real numbers. Yes, I get it. But you mean real real numbers from the real world, not the representations used in computers. Real real numbers have infinite precision, which means you can't measure a real real quantity. cyphar (parents sibling) said: > a double pendulum is a very simple system and is still chaotic You're right, it's nothing to do with complexity. It's that immeasurably small changes in initial conditions lead to huge differences in the way a system develops. So a chaotic system that depends on real-world real quantities is in principle unpredictable, because you can't measure real-world reals precisely. Thanks people, for nailing a stake through my misguided notion that you need a quantum process to be sure your RNG is immune to prediction by some hypothetical arbitrarily-powerful computer.