Are these guys serious? Do they even have a economical enough propulsion system for their spacecraft?Do they know that human can't survive very long in space without debilitating effects?How do they intend to keep these humans "functional" for the entire 5-9 month(based on current and projected technology for the next 5 years) trip?
Humans have lived in space for slightly more than a year and survived. A Russian Cosmonaut named Valeriy Poliyakov set the record for longest space flight with a time of 437 days 17 hours 58 minutes and 16 seconds and he lived. (I can site sources too! Here's a link to a blurb about him at the International Space Hall of Fame: http://www.nmspacemuseum.org/halloffame/detail.php?id=132) Space flight is probably never going to be as cheap as making paper airplanes, but it can be done for a lot cheaper than people seem to think. In fact, there are people trying to bring the cost per person down. Elon Musk thinks he can bring the cost per person down to no more than relatively wealthy people might pay for a good house in a good neighborhood. (See this interview: http://www.wired.com/2012/11/elon-musk-mars-colony/) The entire Mars One plan of sending 40 people to Mars could cost in the neighborhood of $40-60 billion if you calculate for the fact that the first crew of four is going to cost $6 billion. (http://www.mars-one.com/faq/finance-and-feasibility/how-much-does-the-mission-cost)
