3 ms·
You could go back and meet yourself, then wait and both go back, etc, etc, with the number of ‘you’s growing exponentially until you caused a singularity. But
by mr_toad 5y ago
You could go back and meet yourself, then wait and both go back, etc, etc, with the number of ‘you’s growing exponentially until you caused a singularity. But of course the past, and the singularity would have already happened, which is still a paradox.
Substitute a virtual particle for ‘you’ and it seems that any potential path back in time runs into this paradox.
- akomtu 5y agoThat's only a paradox if there's one "true" arrow of time. If time is more like a chess position, and we are just making moves, then it's possible to have dead-ends or singularities without "contaminating" other positions.