> Of course, we don't have time symmetry in the equations anyway because of the weak force.

Could you expand on what you mean here? I've expected for a while that there was going to be something non-time-reversal-symmetric with the weak force, on the basis of parity violation (space-reversal doesn't give you the same equations) plus relativity (space and time are the same thing, at least kind of). But getting there directly from parity violation might require a faster-than-light frame of reference to observe it from, which is... let's just say it's experimentally difficult.

How does the weak force break time symmetry?