How does nature prevent time travel? And if it would be possible how would history change? Maybe nature makes you not being able to create a paradox if you did time travel. Well, what do you believe? This Youtube-video talkes about time travelling and it’s possiblity. If you did travel would you return to a different universe?
The original movie in this article has been removed from Youtube, but I provided you with two others instead.
The first one says that time travelling is a paradox and not possible by nature. The new link is from 27 september 2016.
Here is a movie about time travel:
Original link was: http://www.youtube.com/watch?v=m34FK6_ZYRA&w=560&h=315, but it has been removed.