Diversity is both observable characteristics, like gender and race, for example. It's also unobservable characteristics like your social economic status of how you were raised. When people look at me, what they see is a white man. They don't see underneath that, this is a person that has very different experiences than many other white men in the academy. And i believe organizations are much more productive because of that. John, give me an example from your own experience of what you would consider a serious voltage drop.