Other than Mars, any future humans living on any "M" class planets that we discover will be one-way, multi-generational trips. Unless we can travel instantaneously throughout the universe, exploration is pretty pointless since it'll literally take decades (in each direction) to communicate with our colonies, never mind bringing resources back to Earth.
Either we're never leaving, a few brave souls leave, or we're all leaving. Really there's little incentive to leave unless the rest of your life, and your grandchildren's, and their children's lives are that much better off aboard a space ship than they are on Earth.
Hawking also recently stated that if we ever met "aliens" they would almost certainly be aggressive toward us, which I disagree with. Hawking definitely doesn't give much credit to the human race, or any other potentially intelligent life forms.
Unless instantaneous travel is possible (which it probably is, but not anytime soon), us and any other form of intelligent life in the universe are in the same boat.
Either we're never leaving, a few brave souls leave, or we're all leaving. Really there's little incentive to leave unless the rest of your life, and your grandchildren's, and their children's lives are that much better off aboard a space ship than they are on Earth.
Hawking also recently stated that if we ever met "aliens" they would almost certainly be aggressive toward us, which I disagree with. Hawking definitely doesn't give much credit to the human race, or any other potentially intelligent life forms.
Unless instantaneous travel is possible (which it probably is, but not anytime soon), us and any other form of intelligent life in the universe are in the same boat.