MinutePhysics gives an incredibly concise overview of what we know, and what we don't know, about the beginning of the universe. Of course, the most tantalizing part is the point "where we don't know what we're talking about." (via Viral Viral Videos)
Perfect coincidence timing. I've been chewing on this (ie how does space/time work) for a couple of weeks now. This is excellent. A
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