Timeline for Are there any yet unresolved SR paradoxes?
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| Jan 2, 2022 at 2:23 | comment | added | mmesser314 | @Markoul11 - What you say sounds reasonable, but be careful about relying on reasonableness. The Block Universe isn't reasonable, and time has other weirdness when you look at quantum mechanics and general relativity. For example, an entangled pair of particles can speed away in opposite directions. Both are in a superposition of spin up and spin down until one is measured. Then the other will always be measured to have the opposite spin. This will happen even if the measurements are so close together in time that the speed of light prevents one from knowing the other has been measured. | |
| Jan 1, 2022 at 11:24 | comment | added | Markoul11 | Causality is the reason responsible for the forward arrow of time. If causality is violated there is no time. Since in this experiment speed is less than c therefore time must exist and so must causality. Meaning despite simultaneity concerns (simultaneity is irrelevant here) and different frames, the two observers must see the same events and in the same order else time, reality and causality have no meaning and should not exist. It does not matter if the two explosions happened at the same point in a spacetime graph, the problem is that the runner dies both outside and inside the barn. | |
| Dec 31, 2021 at 20:48 | history | answered | mmesser314 | CC BY-SA 4.0 |