Again, in my opinion, and I have written on this thread just why this is so, there will never be intergalactic travel. There is never going to be any means of travelling at speeds greater than the speed of light. It’s not a question of technology. It’s a matter of geometry. The fundamental shape of our spacetime is such that it isn’t possible to exceed the speed of light in vacuum.
“This statement is objectively false. There is no requirement that objects in relative motion must be moving slower than the speed of light.”
“Nope. Not true [that any relative velocity must always be less than the speed of light in conventional physics.”
“There is never going to be any means of travelling at speeds greater than the speed of light. It’s not a question of technology. It’s a matter of geometry. The fundamental shape of our spacetime is such that it isn’t possible to exceed the speed of light in vacuum.”
What? These posts of yours quoted above seem self-contradictory. This is why I’m confused. Your latest quote is what I thought was true, but before that you seemed insistent that it was wrong.
Which one is correct?