WereKitten on 02 June 2010
| binary solo said: The Fongoids screwed it up, so now the great clock basically stops us from being able to do it. At least that's what I've learned from A Crack in Time so far. Actually in quantum phsysics (as far as my brother has explained it to me) time flows in both directions, it's just that we seem to be hard wired to only perceive it flowing in one direction. ... |
More or less correct: basically our quantum laws respect a CPT simmetry. That would mean that you can't distinguish an electron from a positron (its antiparticle, C simmetry) traveling back in time (T simmetry), seen in a mirror (P simmetry).
Or, just for fun, that you can see the same diagram and
- read it as showing an electron and positron annihilating, their energy and momentum released into a photon, or
- read it as an electron hitting the void, emitting a photon in the collision to conserve energy and momentum and ricocheting backwards in time. That would be what you before called a positron.
