Proculation wrote:
I'm asking this because I've watched the 2nd episode of "Into the Universe" (time travel) by Stephen Hawkins. He says you can travel in time but only to the future, not the past.
That's why I suppose you can't go back into a wormhole to the space-time you departed.
What he specifially stated was you can't travel in time via wormhole. His example of travelling forward in time needed a 6 year full rocket burn to approach 99.9% of light speed.
Think about it. If you can't go back in time via wormhole, you can't go forward in time either because of the same feedback effect.