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That builds a home from the ground up. right now it can build a 2500 square foot house in just 20 hours. it could one day provide housing for the worlds poor. nasa is even considering it so they can build habitats on mars. >> that is just fascinating. >> it really is. but you know, it is also kind of a scary thought when you think that futuristically, how many jobs that ends up impacting, if you can just whip out a house just like that. >> no doubt about that. the whole thing is scary. thats a w...