Recent content by olgerm

You end up in all branches. Just you in 1 branch does not know anything about you in another branch. In all branches to understand things it is easier to ignore other branches, because you cannot interact with other nor get information from other branches if these are sufficently...

wavefunction ##\Psi## is real. Wavefunction contains detectors and humans watching detectors. and all configurations that have non-0 amplitude according to the wavefunction are real. There may be wavefunction that gives high amplitude for configuration that describes experiment with detector and...

There is no good generally accepted method how to divide given wavefunvtion at given time into branches. If you have quantum computer with 2 entangeled qbits. And some output of this computer that makes output value understandable for human user Alice. Since this computer creates many branches...

If you do SR( aka poincare group aka lorennz) tranfsformation on coordinate system, then it affects whole wavefunction ##\Psi##. You can not do SR frame-of-refence trasformation to only some of branches. If in frame of refence 1 arguments of ##\Psi1## are coordinates of particles given by...

I guess it is clear anyway, but just to clarify: You probably meant some Scrödinger cat type experiment and metaphorically called it coinflip, because normal coinflips would produce only 1 branch with significant weight according to MWI and had only 1 singificantly probable outcome according to...

I think it makes more sense to talk about number of different possible arguments of wavefunction ##\Psi## than number of branches, because there is no good generally accepted way to divide given wavefunction at given time into branches. For example in QM: if: you assume there are N particles...

in QM electron is point-particle. In QFT(after EW-symmetry breaking) electron is massive spinor-field. in QFT(before EW-symmentry-breaking) electron is described by 2 different massless spinor-fields. There may be many formalisms and ways to calculate time-evolution of wavefunction(including...

It is. If you take some wavefunction, in which there is no entagelment between particles, and fitting hamiltonian for particles in this wavefunction, and then calculate timeevolution of these particles using Schrödinger equation, then you may find that after some time the wavefunction has...

I agree that in usual macroscopic measurements decoherence is effectively irreversible for all practical purposes. My point was formal(excact not about practical approximations) not practical. Since the global wavefunction ##\Psi## time-evolution is completely described by Schrödinger...

Do predictions of MWI and copenhagen-interpretation always agree? If yes then effects that are caused by interactions between approxiamately decohered branches that are in QM with MWI should also be predicted by QM with copenhagen-interpretation. So prediction of copenhagen-interpretation that...

The observable property of conciousnes is that humans do understand and say, that they are concious. What is the "easy problems" explanation to why humans say that they do have subjective experiance? If askes "do you have conciousnes?" why do humans answer "I do have subective experiance...

If you can make computer-program that behaves exactly like human then it should say that it has consciousness(qualia) just like humans. If you understand the easy problem and know how neural connections in human body causes humans act like their do then you should also know how neural...

I modified my post now and tried to correct mistakes. you can tell me if it is correct now.

In standard quantum mechanics (without objective wavefunction collapses) were time-evolution of wavefunction is predicted only by Schrödinger-equation: in MWI: In each branch after that branch went to decoherent to branches with different coordinate output-values Bob in that branch says "after...

Suppose one photon goes through an interferometer and then hits a screen. A device detects the hit position, digitizes it, and later a person Bob reads the output. 1. Before detection Initially the total wavefunction ##\Psi## describes: the photon moving toward the interferometer, the screen...