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This will probably interest you guys a lot too. It's an hour long lecture so it's technical enough to give great insight yet easy to follow.
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I heard something similar to this (iirc) on Through The Wormhole which is what got me into cosmology and what not, the episode on black holes is actually what sealed the deal for me. I have to also toss it out there that the one thing I really enjoy 'bout NDT is how accessible he makes everything. (see the recently ended Cosmos [2014] for what I mean)