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Many Retrocausal Worlds: A Foundation for Quantum Probability
Michael Ridley
https://arxiv.org/abs/2510.02505 https://arxiv.org/pdf/2510.02505

Many Retrocausal Worlds: A Foundation for Quantum Probability
Recent accounts of probability in the many worlds interpretation of quantum mechanics are vulnerable due to their dependence on probability theory per se. For this reason, the many worlds interpretation continues to suffer from the incoherence and quantitative problems. After discussing various theories of probability, I discuss the incoherence problem and argue that self-locating probabilities centered in time-extended worlds can solve it. I then discuss and refute various solutions to the qua…