Very thought provoking
Terrific documentary! Not to be watched casually, many many concepts, theories and science that will turn your head. The professor presents the facts very carefully & thoughtfully. Wish I'd had a professor like him in college. So glad I bought the DVD as this is to be watched several times. PS - I didn't know R4 indicated a region in the world. I ended up buying a new DVD/CD player that allows all regional codes.
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