>https://en.wikipedia.org/wiki/Wormhole
>a type held open by negative mass cosmic strings was put forth by Visser in collaboration with Cramer in which it was proposed that such wormholes could have been naturally created in the early universe.
why would we suggest that these could be created naturally if we also assume reverse time travel is impossible?
>a type held open by negative mass cosmic strings was put forth by Visser in collaboration with Cramer in which it was proposed that such wormholes could have been naturally created in the early universe.
why would we suggest that these could be created naturally if we also assume reverse time travel is impossible?
