Man to start civilization in Mars

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I have recently read a post in Yahoo! about plans of man to start civilization in Mars. We are all aware that there were recent studies conducted on Mars with the purpose of determining whether can can live on that planet. There were indications and possibilities that we can actually live on the planet because of existence of gravity and water. There were group of scientists who have suggested that man should start thinking of inhabiting the planet considering its possibility. That idea was based on the premise that mankind may suddenly vanish due to the fact that asteroids and super nova possibilities may cause Earth to completely vanish. Having considered the possibility, those proponents have came up with an idea that it is about time that man should think of inhabiting places other than the Earth. It was sort of continuity plan for the existence of mankind. However, the idea that has been proposed was a one-way flight to Mars. Meaning the person that will be sent is bound not to come back to Earth. He will try to experience living in Mars and subsequently start the civilization there. There were ideas about billionaires to be sent to explore the target planet. What do you think about this? Are we that advanced to actually manage living in Mars? Would you want to be sent and actually live outside of Earth?