How does a lightsaber work? Here is my best guess.

A lightsaber works by emitting a stream of magnetic monopoles. Magnetic monopoles are heavy particles that source magnetic fields. They are so-far undiscovered but many physicists believe they are real due to theoretical arguments. For string theorist Joe Polchinski, for example, �the existence of magnetic monopoles seems like one of the safest bets that one can make about physics not yet seen.