text:  Yes and no. Obviously, there's a lot. It's complicated. There's a lot going on in a rocket. But we've taken our time to do as many tests as possible, testing all the different systems, even doing hot fire tests of the engines, doing the final countdown up to but not quite launching off. So we've checked everything we can. We've got everything we can under control. Then there are certain things we still don't control, the weather. If there's too much wind, high wind and altitude, we won't be able to launch. If there's a thunderstorm overhead, we won't be able to launch. But we're tracking everything we can.