Are You Managing a Portfolio Game?

There's a great book that came out maybe a year or two ago called empires of the sky. It was about how in the 1920s there is a battle between aircraft and airships for supremacy of aviation, you know, what was going to be the long distance technology. And it sounds absurd today to think that airships were potentially a winner, but most people thought that the airship would win over the long term. That's ultimately a big piece of what we're trying to do and where we're, I think we're making a lot of headway with.