Top 10 Things to Imagine the Future Holds
The Top Ten
I don't want any of these, they can actually make the world worse - NuMetalManiak
It might be possible, but it most likely would be outlawed considering that the more people went back in time, the more effects it would have on the future (and if we're not careful enough we might destroy the whole universe).
I'm talking about real-life lightsabers.