[quote="TLK, post:50, topic:194203"]
You have more questions than the answers I have.
In theory, black hole to white hole tunnel is one way. You can only enter from one side and exit on the white hole side, there is no return trip.
When you are connecting two universe, they both have their own space dimension and own time dimension, so curving of time is irrelevant in this case. You can only measure time with respect to some other time. This is 20th century, your great grandfather was born in 19th century maybe, so we are measuring his time with respect to our time.
But in two different universe, time flows independently of each other so curving of time is not going to matter. Now how time flows inside that tunnel, I am not sure even physics has answer to that as no one knows what actually happens inside the black hole.
I am not sure if I answer your question right, means if I understood your question and annswered what you are asking ...
/QUOTE I don't know what I just said LOL.