 I'm concerned on some levels, absolutely. But really, what we should be focusing on is not just the breadth. I mean, at any given time, there are going to be a couple of very large leaders. What I'm most concerned about is really the earlier point that earnings are growing 40, 50 percent. And just the expectations of that continued growth, really for time that almost becomes impossible, the market collapses under its own weight. And as an additional challenge to that, the U.S. economy is shrinking.