...or you just take the wave function as the real-reality, and in this reality a "chaotic system" is one with even macroscopic position probabilities "smeared o

...or you just take the wave function as the real-reality, and in this reality a "chaotic system" is one with even macroscopic position probabilities "smeared out" too uniformly have any one be "classically-real". If classic reality is the illusion, and our intuition is fundamentally limited and incapable of grasping the actual reality, then even many-worlds is a bit of clutch... we imagine an infinity of "parallel" classical universes simply because it's the best we can do: one wave function universe where all the variants are "real" at the same time only that being real is a complex-numbered-probability so some are more real than other with different orientations and magnituded too. ...we could just give up hoping that our ape-brains can fully "grasp" reality, and just focus on getting the math to work: if some math systems make chaos and qm both work, then move on with that regardless of our primitive intuitions and preconceptions/superstitions of that the workld ought to be!