There’s a lot to love about the Everett/Many-Worlds approach to quantum mechanics. It is lean and mean, ontologically speaking; there’s just the quantum state and its single evolution equation. It’s perfectly deterministic, even though individual observers can’t tell which world they are in before they actually look at it, so there is necessarily some probabilistic component when it comes to people making predictions. And there’s no difficulty in explaining things like the measurement process, or any need to invoke conscious observers to carry out such measurements. Everything is just a wave
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