I personally think it's a form of tunnel vision to think that any sort of extensive space travel is anything other than a complete fantasy.The very laws of physics as we know them, say that it is essentially impossible.
We don't even know if it's possible for actual life just simply life itself, to exist anywhere except on Earth for any length of time. We have exactly one example. Earth. All tests to the contrary in space show that life dies for all kinds of non-obvious reasons when removed from Earth for any extended period of time.
I personally hope it's not true and I do enthusiastically watch the progress. However, math is really, really bad.
We don't even know if it's possible for actual life just simply life itself, to exist anywhere except on Earth for any length of time. We have exactly one example. Earth. All tests to the contrary in space show that life dies for all kinds of non-obvious reasons when removed from Earth for any extended period of time.
I personally hope it's not true and I do enthusiastically watch the progress. However, math is really, really bad.