I guess it depends on what you term as time traveling.
If you are referring to time travel based on 11 dimensional string theory, then I would have to say yes that it is POSSIBLE, not for a very long time and we'll probably learn to live on the surface of the sun long before that would be...
Why are we unable to see light except if we are looking at the light source or a source that is reflecting the light?
For example; say we set up a powerful laser but we cannot see the origin or the end point. The a vacuum is produced in the room to remove all possible particles that might...