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Uploaded on Feb 2, 2011
*ALL CREDIT FOR THIS VIDEO GOES TO THE DISCOVERY CHANNEL AND THE TV PROGRAMME INTO THE UNIVERSE WITH STEPHEN HAWKING*
Here the biggest problem with the theory of time travel; the grandfather paradox is explained via a variation, this is the mad scientist paradox.
*ALL VIDEOS WERE FOUND FROM ACROSS THE WWW AND HAVE BEEN UPLOADED INTO ONE CHANNEL FOR THE EASE AND CONVENIENCE OF INTERESTED VIEWERS, I OWN NO RIGHTS TO THE ORIGINAL VIDEOS/UPLOADS, CREDIT MUST GO TO THE ORIGINAL SOURCE*