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May 19, 2019 at 1:46 comment added Matt Skeptic Well said Geronimo! I asked the question because I've read all sorts of deep thinkers on the subject that seem to ignore the first principles of feasibility. The human psychology problem has been well discussed so I thought I would throw in another fundamental problem in the hope of installing a reality check. After reading the answers above I think you will agree that we are staying on planet earth and no other multicellular life form can possibly visit us - single cells in comets may make it.
May 16, 2019 at 23:12 history answered Geronimo CC BY-SA 4.0