[jumping_frog]

Does access to arbitrary parallel universes imply that they divide up the computation and the correct answer is distributed to all of the universes or in such a collection, there will be sucker universes which will always receive wrong answers ?

[aithrowawaycomm]

Good question! The whole magic of quantum computation versus parallel computation is that the “universe” probabilities interfere with each other so that wrong answers cancel each other out. So I suppose the wrong ”universes” still exist somewhere. But it’s a whole lot less confusing if you view QC as taking place in one universe which is fundamentally probabilistic.