PayPal, Tesla, and SpaceX founder Elon Musk recently appeared on Metaphysical Milkshake, the fast-paced talkshow produced for Rainn Wilson's "big questions" site SoulPancake. On the show, Musk and Wilson discuss how Mars could be terraformed and colonized, and why we should be pursuing such a goal. Musk aserts that establishing a human presence on Mars is necessary to ensure that consciousness exists for a long time, in case something catastrophic were to happen to earth. He also says that man making the jump to Mars could be as important for our species as our descendants first leaving the sea. In addition to their space talk, the pair also discuss global warming, Musk's inspirations, and offer advice to other would-be entrepreneurs.