 You're looking at something that's coming at you at Mach 5, Mach 6. You know, the watchstanders have anywhere from 15 to 30 seconds to engage. It was the Navy's first ever real-world test against a supersonic missile. You must have computers doing some of that for you. The computer is spitting out where it's going and the altitude and all that very fast, of course, but the humans have to push the buttons.