why would a looping beam of photons twist time back to the past? very 'hand-wavy' explanation at the end.
And isn't nearly every physicists work based in part on Einstein's work?

Moving this video to winkler1's personal queue. It failed to receive enough votes to get sifted up to the front page within 3 days.

*beg

Sending this video to Beggar's Corner to plea for a little attention - beg requested by original submitter winkler1.

I saw that on TV just the other night. What a moving way to inspire his research.

He invents a time machine because of his father's untimely death.
He goes back in time and prevents his father's untimely death.
His child self is then never inspired to become a physicist or invent a time machine.

Could it ever be possible for this man to succeed?

In the video, he explains that you can only go back in time to the point at which the time machine is turned on. Therefore, the earliest point in the past that we will ever be able to travel is the point at which the time machine is invented.

HINT: He didn't invent it before his father died.

Yeah, I was posing a broader question, one that I've always found interesting, about general time-travel concepts. Anyone who saw The Time Machine a few years back should be familiar with it.