The third big challenge was simply how do you debug the thing. All of a sudden, you can't talk to Cincinnati, Ohio. What went wrong? How do you figure it out? You call Cincinnati, Ohio, and you get a sleepy night watchman at 3:00 in the morning walking up to this little blinking box in the corner. What does he look at? What do you do? And even if you get the system back up, what went wrong? How do you fix it? Remember, I was a big things-don't-crash, things-are-going to-keep-working guy.