Sunday, March 07, 2021
how do you do a backwards experiment?
While I like the branching of reality going forward, I can see that there might seem only a small chance of a branching going backwards. But it is not ruled out.
I don't quite see how you would do an experiment to observe such an event.
Could the 'energy' of the vacuum playing some role here, with pairs of particles spontaneously appearing and the disappearing.
A branching space with one direction of time is topologically very sparce and wide, and I prefer something that is rather more compact.
I think I need particles to spontaneously disappear for a brief period, that is the reverse of the borrowing a bit of energy for a short time. I just cannot see at the moment how you do an experiment. Maybe this could allow particles to overcome some impossible barriers, and we could watch if they reappear with some changes?
Martin
