Randomized touchdown points for autoland
Years ago, I read that ILS autoland systems were originally so precise that they would land an aircraft on exactly the same spot on a runway over and over. Supposedly this put uneven stress on runways, wearing out one spot while the rest of the runway remained in acceptable condition. And supposedly autoland systems were modified to slightly randomize the exact touchdown point for each landing so that it wouldn't always be hitting the same spot.
Unfortunately, I can't remember where I read this. It sounds a bit like an urban legend. Do autoland systems really randomize the touchdown point for each landing?