For anyone who wonders whether or not a real lightsaber will ever exist, I present you with this: the Arctic Spyder Laser III. Apparently this laser can burn through things, including people's skin.
Arctic Spyder Laser III = the most awesome Power Point presentation ever.
Some people doubted the potency of this device until it was finally revealed. This could be bad. Remember seeing annoying red dots everywhere when the laser pointer came out? Well, imagine that but with casualties.