In Part I on worldbuilding, we talked about the fans, now here's my take on the author's end of things.
Tolkien is often cited as the father of worldbuilding, and though he was hardly the first to develop an invented world in which to set fantastical stories, he did take the practice to new heights of complexity. Since then, many authors have followed in his footsteps, copying his length and complexity despite the fact that neither length nor complexity are desirable traits, in and of themselves. A good short story is not improved simply by the addition of more pages, nor, when we discover a scientific principle, do we tend to represent it in its most complex form--quite the opposite: art and science both benefit from elegance and focus. As Einstein said, a scientist begins to expect the world to be beautifully elegant, such that it is often considered a good sign for a theory if it is able to represent an idea fully with the interaction of a few simple variables.
