This video is courtesy of Massimo Pigliucci at Rationally Speaking. It's fast and informative. However, if I am not mistaken, the statement about the universe collapsing in on itself after enough time, seems like a conclusion jump. I thought that this would happen only if there was a certain amount of matter and/or energy in the universe. And since the dark matter debate is still open and lively this would be an open market of ideas.
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