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    Peter Lynds' paper and his 'theory' of time

    An article about some Peter Lynds fellow and his mind-blowing theory of time that has "rocked the physics world" appeared on Slashdork. Naturally enough, my combo quack and hoax detector started beeping. Well, here's his paper. I don't have time to deconstruct it, so I ask the community here...
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    Math required for LQG

    I'd like to acquire more than a casual understanding of LQG, and to do that I need the math first. My math background has been acquired ad-hoc while pursuing a degree in Astronomy. A smattering of group theory here, enough differential geometry and tensor gymnastics to read Gravitation (Thorne &...