The mutation from terrestrial to interstellar life must be made, because the womb planet itself is going to blow up within a few billion years... Planet Earth is a stepping stone on our time-trip through the galaxy, Life has to get its seed-self off the planet to survive... There are also some among us who are bored with the amniotic level of mentation on this planet and look up in hopes of finding someone entertaining to talk to.
Timothy Leary