Greetings!! From my last post, to this my understanding of QM has improved somewhat. (thanks mostly to these great forums). I was wondering how the Multi Universe Theory treats the observer effect in a basic Quantum Double Slit Experiment ??? from howstuffworks.com :- "“When a physicist measures the object, the universe splits into two distinct universes to accommodate each of the possible outcomes.”" So does this mean, when we set up a detector to determine which slit the photon went through, in our universe the decoherence causes the photon to behave like a particle, but in an alternate universe, the photon could actually go anywhere and continue to to perhaps form an interference pattern? If my understanding is right, has anyone explored the nature of such an universe where observation has no effect on quantum events???