I'm not well informed on this, and I don't think consciousness is relevant here so by all means I hope someone corrects me. But I'm not sure it's that simple. A

I'm not well informed on this, and I don't think consciousness is relevant here so by all means I hope someone corrects me. But I'm not sure it's that simple. As I understand it, you can have something set up to measure a property like momentum, then obfuscate it, and the eventual outcome will be an uncollapsed system. Putting on my baseless assumptions hat, it seems to me the world just behaves as a weighted average of all possible pasts, that reality isn't "branching" into many worlds on measurements so much as just being a giant vector space of electron states that have some discrete gaps in an otherwise continuous space due to precise measurements being made, and that the phenomenon of particle-wave duality is just an artifact of some rounding the universe does under the hood when averaging together these possible pasts to render a given state*, and that any attempt to understand the casuality of the particles will fail because they don't arrive from a single cause, but a space of causes, which we can at best constraint to single points. https://en.wikipedia.org/wiki/Delayed-choice_quantum_eraser https://en.wikipedia.org/wiki/Delayed-choice_quantum_eraser