I was surfing the net and ran into my Grandfather, no actually I ran into this article at LiveScience about Time travel and the new concepts and theoretical forms of matter, ect, ect. I’m rambling, but the article was interesting and at the bottom there is a link to a short movie.  Worth a look.

“We know that bending does happen all the time, but we want the bending to be strong enough and to take a special form where the lines of time make closed loops,”