We need to find some way to constrain what errors are possible. We can silo ourselves tribaly, and so they seek out a tribe. It's human operating system, and it's the base code. And we're now living in a world where it's possible to imagine errors from which we literally cannot recover as a species. That's new. Fortunately, fortunately, we've come too close to that actally when you read the history of near messes of nuclear weapons.