Is there a definitive theory concerning the formation and structure of hypothetical white holes? Also, could somebody please explain the connection between the eternal black holes, the arrow of time ...
If physics is time reversal invariant, there ought to be white hole complimentarity as well. Imagine a white hole so enormous that it is possible for life to evolve entirely within it for billions of ...
Why is it that a white hole can only exist in certain circumstances, i.e. in spinning black holes, eternal black holes and black holes with an electric charge etc.. Why is it that you can't just have ...
Under General Relativity, Lorentzian wormholes (the kind that are traversable) require exotic matter (a kind of unobtainium which is not known to exist). On the other hand, we know black holes exists ...