To be fair, one could shy away from saying all those branches are real due to the difficulty of squaring the Born rule with the equal probability calculations that seem to follow from that view. Without something like mangled worlds, one can be tempted by an objective collapse view, as that at least gives a coherent account of the Born rule.
To be fair, one could shy away from saying all those branches are real due to the difficulty of squaring the Born rule with the equal probability calculations that seem to follow from that view. Without something like mangled worlds, one can be tempted by an objective collapse view, as that at least gives a coherent account of the Born rule.