PeterDonis's latest activity

Is Barandes is claiming that "division events" can occur without decoherence? If so, that would seem to contradict standard QM as it is...

That's one of the things there isn't consensus on. Some physicists think the evidence we have confirms it, others disagree.

I'm not sure what you think the difference is between what you described and eternal inflation. No, it's not clear that the answer is...

And the answer to that is, we don't know, because there is no consensus among the relevant scientific community, and we have no evidence...

It is when you're talking about multiverse hypotheses. That's the whole point of them: that every possible universe that could happen...

Yes.

That's how Tegmark defines a Level II multiverse. It's true that he defines other levels as well. But the OP appears to be asking about...

Sure, but the OP's not asking how to define a multiverse. He's asking whether inflationary theory actually says a multiverse exists...

More precisely, on the standard understanding of the experiment, decoherence does not occur until the particle strikes the detector...

And from that Wikipedia page (thanks to @renormalize for the quote): Proponents and skeptics Modern proponents of one or more of the...

For reference, the Wikipedia page you mention is here: https://en.wikipedia.org/wiki/Multiverse

In general this is not the case. The Lorentz force is ##F = q \left( \vec{E} + \vec{v} \times \vec{B} \right)## (modulo some constant...

Such a particle is not isolated--it has to interact with the barrier and the slits to produce the interference pattern.

Not just upward, but to the right (like it was moving before) and upward. So you have to apply the Lorentz transformation along that...

Meaning, basically no actual real systems at all. That doesn't look like a good basis for an interpretation to me.