Time travel is a concept that has been a topic of discussion for ages. It is one of the most interesting topics not only for scientists, but for movie makers as well.
Some of the greatest movies include the concept of time travel. We are now more than 30 years away from the release of the original Back to the Future. And Flash is one of the most popular comic book superheroes who constantly travels through time.
On a more serious note, the documentary, voiced by Morgan Freeman discusses the concept of time travel with some scientists and experts on the topic.
What are the laws of physics on time travel? And how do they apply? Can you travel to the past and create new matter?
No matter how you look at the concept, time travel will elude us with years. But it is nice to start discussing the topic. There was a time people thought going to the Moon is impossible.