OK, after watching the news this morning and discovering that "The Dark Knight" has sold some amazing amount of tickets in advance of the movie opening, I go to http://slashdot.org and discover an article based on a "Scientific American" article suggesting anyone can become Batman with ten to twelve years of training.

Let's see, the Waynes get gunned down when Bruce is about, oh, let's say ten years old.  He spends a few years in a mental depression and then starts to train for real.  So, he could still be under thirty when he starts.  Too bad the article also suggests this peak of performance can't be maintained.