Since Sept. 19, 2000, the computer that this is being written on updated its operating system 113 times. If, instead of an operating system, it were a car that had been recalled 113 times, the Justice Department would be doing a dance on the manufacturer’s head while Ralph Nader chewed on its ankle. But because it is software, a lot of hours have been meekly devoted to fixing mistakes that shouldn’t have been sold in the first place.