Of all the items on the worry list of how artificial intelligence will disrupt American society, perhaps the most troublesome is its impact on old men.

All of the how-to knowledge we've gleaned from decades of working under car hoods and kitchen sinks is now stored on supercomputers ready to be spit out with a few keystrokes, with step-by-step videos included.

Dad and I replaced an engine and transmission in a 1965 Ford Fairlane when I was in high school. And sure, we had a bucket of extra parts left over when we finished, but it ran just fine. "Must not have needed them," he concluded.

The do-it-yourself movement is gaining a resurgence. When I asked AI........

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