gentzen's latest activity

I remember that he recently switched to a new attack on BM: The local phase of the wavefunction is a gauge freedom, but the actual BM...

But Barandes attacks MWI as untenable, so this can't be an excuse for him. I would have to lookup the detailed reasons for Barandes'...

Exactly, that is the impression I got.

If M annihilstes it, it means that it takes it to the zero vector. So L is applied to the zero vector and returns the zero vector.

Zero, the number, times any vector gives the zero vector. Think of any specific vector space, say ##\mathbb R^3##, then ##0\cdot(a, b...

But it is irrelevant for this thread!

Thanks for trying to drive this forward to closure. Your "more general version of your argument" nicely captures the reasons why...

For "my fixed version of" Demystifier's simplified scenario, L was defined as The "more mundane measurement operators" would just...

Well, the associated eigenspace of L with eigenvalue +1 is the entire space of possible linear superpositions of straight-line tracks...

Turns out L should be consistent with those more mundane measurement operators. They should be a simple refinement of L. (I have no...

The observation is just the eigenvalue and its associated eigenspace. Even so there is a state after measurement, I don't always learn...

Because he cares about the state of the cloud chamber, i.e. the state of the measurement apparatus. And if the possible dots constitue...

No, I tried to guess what you might have in mind when you claimed: "I said it (quite strongly) leads to the opposite prediction, that we...

Exactly!

Good, but then I simply disagree with you on that point. I mean, as a proponent of the consistent histories interpretation, I wonder...