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A comment on Physicists provide support for retrocausal quantum theory. Parent comment

Re:Physicists provide support for retrocausal quantum theory by opportune on Thursday July 06, 2017 @10:04AM (#14710473)
What if collapsing quantum wave functions simply eliminates the possible futures within our universe in which the computation is incorrect? In that case it's not exactly a multiple-universe problem, and more an issue of imposing constraints on our own single universe.

I find this view to make much more sense than the multiple universe view. Those other universes would need the infrastructure to support the same computation, and would also need to be somehow linked to our own. Or perhaps I am misunderstanding you, and we are both saying the same thing.

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Re:Physicists provide support for retrocausal quantum theory by ridewinter on Thursday July 06, 2017 @10:11AM (#14710533)
Well the calculations to do this elimination would have to happen somewhere. Deutsch and the many-worlds interpretation says it happens in parallel universes. And what makes quantum computing so difficult is that you have to arrange those parallel universes to be identical in every way except the inside of the computer itself. That's the only way to get an answer back. If there's interference with the outside environment, the universes become different outside of the computer and you can't get an answer back.

I love this stuff.

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