It is pointless to send humans to Mars. Robots are far cheaper and more capable. And, by the way, Mars is virtually in our back yard. Any talk of sending humans into interstellar space is just childish comic book talk. We have one planet, and there will never be another planet for humans. I hope we find a way to continue to exist on this one amazing blue ball.

On second thought, sending Elon and about 100 other billionaires (I would like to select them) to Mars does sound like a great idea!