[pixl97]

If you put an atom in a molecular cup and look away, does it stay there? Maybe it does, maybe it doesn't, yay quantum weirdness.

But even in your example you couldn't even give me an example of a complex system, and instead had to give a simple system that works deterministically and still makes lots of assumptions. Like, how long did you cover the apple with a cup for? If it's a moment the apple will be there. If it's a much longer time maybe when you remove the cup the dessicated rotten remains of an apple come out. Or maybe there was a bug in the apple so when you remove the cup you no longer have an apple, but a bunch of bugs and a pile of feces.

Now don't get me wrong, I'm not arguing against determinism. If you knew all states of the matter that went into the cup (well and of the universe) you could most likely accurately predict what was going to be in the cup regardless of what time you look in the cup again. Unfortunately for us humans we're stuck in a universe governed by the uncertainty principle. We can't know at the quantum level, and at the macro level there are enough chaotic actions that predictions of complex systems quickly fall apart. There is only the most probable outcome, with the random chance a less likely outcome could occur.

[guy98238710]

> If you put an atom in a molecular cup and look away, does it stay there? Maybe it does, maybe it doesn't, yay quantum weirdness.

You are overthinking it. In case of quantum effects, the whole quantum system, including all its parallel states and uncertainties, is part of the single shared reality.