Space Bureaucrats vs. Space Billionaires

How do we best get space tourism and moon colonies – big public projects, or cocky entrepreneurs? Lori Garver is the former Deputy Administrator of NASA, and the author of "Escaping Gravity: My Quest to Transform NASA and Launch a New Space Age."

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Robert Zubrin on "How to Build a Moon Base": https://www.youtube.com/watch?v=MEEgdmimSWg