 So I think Silicon Valley and its equivalents wouldn't exist if CEOs were not vulnerable as all of us are to narrow-mindedness. So what I like to say is say thank you to the narrow-mindedness that you use, because it allows us to do a lot of things very well again and again. But it can result in spectacular errors and so we've got to learn to overcome it and we've got to teach our body and our brain and our organizations to overcome our natural narrow-mindedness.