> I hope that this the case, otherwise humanity will die on this planet. If there are no new physics then there is no faster-than-light travel and escaping eart

> I hope that this the case, otherwise humanity will die on this planet. If there are no new physics then there is no faster-than-light travel and escaping earth will be pretty much impossible. In the long term, we have the entire solar system to work with, which should be plenty to keep us going for a very long time. The Earth is just a small fraction of what's available even if we're stuck with our sun. Frank Drake from SETI thinks that alien civilizations have no good reason to ever leave their home stars, because a star will provide all the energy they will ever need, and traveling light years just isn't worth the cost (assuming no FTL).