Okay guys....after watching the great movie Donnie Darko like a million times....I want to take up a intrest in time travel....like how can it happen? I thought about it and the best I can come up with is: If we are living now...for someone, say joe, wants to travel in time, wouldn't everyone else's time have to stop? In order for joe to go in the past and have interaction with people from now...what would happen to the people in the present time. Would time just pause? Oh, and if any of you have seen Donnie Darko, can you explain what the liquid-like bubbles extruding from the chest is, and where the actual dead engine came from?