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ok so i searchbarred it and didnt find anything so sorry if you feel the need to bitch.
other than the little thing at the beginning i think it is quite interesting, while still remaining entertaining carl sagan sure knows how to attract the general populous
i have come to the conclusion that we will never know of the 4th dimension. my friend explained that with 3 eyes we could, but i refuted with the idea, that even if 3 eyes we wouldn't recognize it, when i close one eye have no depth perception, but i can recognize the 3rd d. only because i know the 3rd dimension