PeterDonis's latest activity

In the general case, no, because not all observables have a discrete spectrum, and at least on its face, the math for observables with a...

The premise of the thought experiment is that "alive" and "dead" are two distinct, macroscopically distinguishable cat states, and that...

Gleason's Theorem doesn't depend on any particular interpretation of QM: it just says that, given the basic math of QM, if you want to...

A local hidden variable theory isn't an interpretation of QM, it's a different theory--because it doesn't (and can't) predict Bell...

If it is, I don't think it would be for the same reason, since the vacuum energy counting assumes a single universe, not many worlds...

Please do not pursue this subthread further. What I said in post #27 is all that can be said about it in this forum.

Not necessarily. You are assuming that every single Planck scale spacetime "cell" is decohered from every other. But that's not the...

Not according to MWI proponents. They have an explanation of why we only observe measurements to have single outcomes, that, to them, is...

It's not clear how our conscious experience arises from the physical processes that go on in our brains and bodies anyway, quite...

Which is irrelevant to the MWI, because the MWI says that it only takes one run of the 1000 coin tosses experiment to get the 1000 heads...

No, you're seeing an objection that many others (myself included) also see to the MWI.

As far as their claims about "what is really happening", yes. Of course they all make the same predictions for what we can test by...

@sevensages please do not quote entire posts. It just clutters up the thread. If you are responding to a specific statement, quote just...

Some would say yes. Others would say that Everett himself never made the "many worlds" claim (the term he used was "relative state")...

Different QM interpretations say different things about wave function collapse. Roughly speaking, at a high level, there are three...