Originally posted by IKC
Okay, that's enough.Here's a real life demonstration: Get Mr. Universe Arnold Schwarzenegger and give him a freaking claymore (read: greatsword. About as tall as he is and reasonably wide)
Then, get a midget with a rapier. Have Arnold swing the claymore at the midget with the rapier and watch as the rapier breaks like a twig (at worst) or falls into the midget (at best) along with the greatsword. Midget is promptly cleaved in two, Arnold wins.
Mass matters.
Mass matters in this case to provide power. The heavier it is, the more powerful. But the beam of the lightsaber is an example of power without the need mass. Therefor the point that the lightsaber would crumble under a sith sword because of the weight is moot. This completely disproves the whole weight issue.