Namely, I have no problem with discarding time and keeping causality.
Why would you? If you have time, the universe has laws and a boundary condition at t = 0. Causality arises from this. If you don’t have time, the universe has laws and a boundary condition at configuration = big bang. Why wouldn’t causality arise from this?
Why would you? If you have time, the universe has laws and a boundary condition at t = 0. Causality arises from this. If you don’t have time, the universe has laws and a boundary condition at configuration = big bang. Why wouldn’t causality arise from this?