Chris, then you have to ask yourself: "Why hasn't someone already built that better mousetrap OS?" It's not like a massive improvement can't happen simply by tossing a billion dollars and a lot of formalism to build it. And it would save billions, if not trillions if we face a concerted "cyber-attack."
The only answer I can come up with is that it's in someone's or someones' interest to not do that.
