I'm a lowly serf just freshly arrived to the realm. After wandering around, seeing a few familiar sights (stories), I am intrigued by the idea of alternate "universes". This is a new concept to me. Could someone please elaborate so I can determine which, if any, universe I may wish to visit? Thank you in advance. Oh, and assume I know absolutely nothing about fantasy and sci-fi and alternate worlds - because I don't...grin.