I don't know why there's often so much misunderstanding between the two of us. I have told you a very simple fact, which is that our current science does not know how to make objects travel fast enough to get anywhere in space beyond our solar system. There are all sorts of issues, relativity being just one of them. For instance, even if speed were not a problem, it still takes two centuries for a roundtrip to the planet you mentioned. Warp drives, wormholes, and other speculative notions do not in any way solve the problem that the length of the trip is not shortened for the people who stay on earth. Now why in the world would anyone spend money on a project whose outcome not even their great-grandchildren would be able to witness?
But perhaps herein lies the fundamental difference between us. I see science and reason as sources of knowledge, not only of what is possible but especially of what is not feasible. You, as far as I can tell, see science as a source of inspiration, as some sort of divine knowledge which allows you to dream of things you will never achieve in your lifetime, but would like to.
I have nothing against dreaming, so I'll try not to stand in your way anymore. I have dreams myself, but they are quite down to earth, and perfectly possible according to my current knowledge. I guess the French would say, "chacun a son reverie"