I was just reading on another lesswrong thread about how T-reversal implies or not taking a complex conjugate. There was a metaphor about a stack of pancakes. If you reorder them have you flipped the stack or do you need to flip individual pancakes as well? It seemed that there were implicit time directions even in the static slices. That is if you take a static snapshot of particle and tell “now enter the next moment” it has inscribed in itself which way to go. This seems to be incontrast with the “if it is at rest, it can’t be moving” intuition. That is a particle moving to rigth if complex conjugated will move to the left and that bit of information exists even in a perfectly thin view of the particle. So a particle is not just a collection of it’s positions in different times.
I was just reading on another lesswrong thread about how T-reversal implies or not taking a complex conjugate. There was a metaphor about a stack of pancakes. If you reorder them have you flipped the stack or do you need to flip individual pancakes as well? It seemed that there were implicit time directions even in the static slices. That is if you take a static snapshot of particle and tell “now enter the next moment” it has inscribed in itself which way to go. This seems to be incontrast with the “if it is at rest, it can’t be moving” intuition. That is a particle moving to rigth if complex conjugated will move to the left and that bit of information exists even in a perfectly thin view of the particle. So a particle is not just a collection of it’s positions in different times.