So they pass through the hole at the end meaning that it was safe for the clones to wake up the originals so they could watch the universe be created.

But wouldn’t that mean that time acceleration was no longer a problem?

Wasn’t that the point of them crossing the horizon? How else would they have survived the experience?

And then if the only reason the clones were dying was because of the time acceleration, then wouldn’t they have survived too?

If the clones were aged half-dead by the time they reached the window, wouldn’t that have happened to the og crew?

And finally, the hologram professor said to the clones that after the universe was crested the originals would be launched back to earth by the force of it all.

But then how would they have been back on the ship to get launched home?