Questions

I would like to know the truth behind ‘Philosophy of Time Travel’ that whether this totally a fiction created by the director.
The concept of parallel universe is a real theory in physics which was proposed to clear the ambiguities of time travel. But I want to know the truth of things like tangent universe, artifact, manipulated dead etc.
- tag

Do you believe if 1 person were to go back into time and meet his other self it would change the course of history? How and Why? What else could possibly happen with time travel to the past and future?

Do you believe that a parallel universe exists and that we have a twin in the parallel universe that does the exact opposite as we do in this universe? What do you believe about parallel universes?

When do you think scientists will discover time travel and parallel universes?

Sources?
- Goodeal