As wedrifid says, this comment tells me that you are, regrettably, not as strong a Bayesian as I would wish many physicists were.
Resolving MWI at a glance involves looking at the Schroedinger equation and conclude that it gives rise to decoherence and that when decoherence gets large enough, the Schroedinger equation says nothing anormalous happens, it just keeps on being decoherent.
That is literally the whole of the argument, and to me saying that something extra and mysterious happens is stupid in an absolute sense. Run a two-particle, single-spatial dimension, time dependent sim of the Schroedinger equation, starting with a high level of quantum independence, and you will see decoherence as plain as day.
Decoherence is simple, falsifiable, and explains all hitherto observed data.
The Collapse postulate breaks CPT symmetry, violates conservation the quantum hamiltonian, violates Liouvilles theorem, violates relativistic locality, is non-linear, is non-unitary, is non-differentiable, inherently stochastic, poorly defined, anthropocentric and formulated in deep confusion.
Pick your side.
Wow, this comment was a fuckup. I meant to say strong things about Macroscopic Decoherence and accidentally came off as if I actually had an explanation of The Born Rule... Stupid illusion of transparency and fight-arguments.
In response to falenas108's "Ask an X" thread. I have a PhD in experimental particle physics; I'm currently working as a postdoc at the University of Cincinnati. Ask me anything, as the saying goes.
This is an experiment. There's nothing I like better than talking about what I do; but I usually find that even quite well-informed people don't know enough to ask questions sufficiently specific that I can answer any better than the next guy. What goes through most people's heads when they hear "particle physics" is, judging by experience, string theory. Well, I dunno nuffin' about string theory - at least not any more than the average layman who has read Brian Greene's book. (Admittedly, neither do string theorists.) I'm equally ignorant about quantum gravity, dark energy, quantum computing, and the Higgs boson - in other words, the big theory stuff that shows up in popular-science articles. For that sort of thing you want a theorist, and not just any theorist at that, but one who works specifically on that problem. On the other hand I'm reasonably well informed about production, decay, and mixing of the charm quark and charmed mesons, but who has heard of that? (Well, now you have.) I know a little about CP violation, a bit about detectors, something about reconstructing and simulating events, a fair amount about how we extract signal from background, and quite a lot about fitting distributions in multiple dimensions.