You got that wrong. The technology is not currently feasible but it is very imaginable. Not that long ago airplanes, submarines and space flight were all just wild dreams. Now they are all commonplace.
It took thousands of years for man to master flight but only fifty more years to reach space. It may take one hundred or even one thousand years before we see interstellar travel but, if we don't exterminate ourselves, it will happen.
What we cannot afford to do is listen to people like you who say that it cannot be done.[/QUOTE
Well, I certainly hope that I'm wrong, and that you're right. However, all the seemingly miraculous and inexplicable technologies you cite are now quite easily understood, given the extent of humankinds' present knowledge. Given our present state of knowledge and understanding of the laws of physics and biology, it appears impossible to extend human life very far outside our planet, much less outside our solar system. I'm rooting for your unlikely opinion, while not holding my breath...