Kamikaze Midget said:Right, but this means that "every peasant has a +5 sword for sale at the closest shop in normal D&D", as hyperbolically suggested, really is out of the water.
People in D&D have seen magic. But people in the real world have seen UFO's. Magic is no less mysterious than that.
Part one, definitely. I've rarely seen a campaign where +3 or better weapons were available outside of maybe the capital city of each country, if that.
Part two... ehh, not quite. While the number of people who've seen/claimed to have seen UFOs may be equivalent to the number of practitioners of magic, the number of people in a standard D&D world who've seen magic used is much, much greater. And while enough doubt exists about UFOs that well-informed people can make logical arguments against their existence, anyone with any kind of knowledge of the world can't logically deny the existence of magic in a D&D world.