Does your degree include any study of black holes (Einstein didnt believe they could exist), singularities and event horizon thresholds?
Also, I don’t have any interest in arguing with you. My whole point is our knowledge and understanding is ever growing. There was a time when the greatest minds and “science” proved Earth was the center of the universe and everything revolved around us. Likewise the earth was flat.
What I am pointing out is that it is likely any contemporary theory will eventually be found false or need to be greatly modified. Especially those defining space/time and their limits.
Personally, I believe our corporeal bodies will never be able to travel outside our own solar system.