With a video like this the comments are all over the place as expected.  Some are arguing yes and some are arguing that it is impossible.  Here are two of the comments:

“TIJ” had this to say after watching this documentary:

Time travel does not exist. There is no such thing as time- it is just a concept. There is just movement. So imagine an atom in your foot. For you to go back and see yourself, at some point this one atom would miraculously become two- which doesn’t happen.

And commenter adrian had this to say:

I would think that the same way we use telescopes to get us a close picture , we can use the same effect to time travel ..

Which camp are you in?  Possible, not possible or something else?

Feel free to comment as well on this thread.