For some reason, whenever I see these documentaries on space travel, and how NASA explains its projects, they always make it sound like "OMG we'll be able to colonize space MAYBE a million years in the future, with super technology, yadda yadda" and "space travel is so difficult", but aside from just getting the rocket fuel together to launch your behind in space, what is so blithering difficult about sealing a container, and sticking an oxygen tank in it? I mean, look, this is just simple mechanics, I don't understand why NASA doesn't send people up into space every weekend (unless the fuel reason, but come on), this is mechanics, it's plumbing, it's not rocket science (or, heart surgery as it turns out, rocket science is a tad bit overrated IMO), just seal a container, put some lead on it or something else to avoid the radiation, and bada bing bada boom, send a guy for a month or two to live in space. PS As an aside, does this have to do with that thing from a movie about space where NASA spent millions to develop an ink pen to work in space while USSR just used a pencil? NASA has no fing idea how to industrialize the space industry?? And make it punchy and cost effective?