What technological advance has caused more harm than good?

[Allison K]

Originally Posted by NeedMoreEngines

Even more so....the power sidewalk. You know, those things that they put in some airport terminals that stretch the entire length of the concourse. the peak of man's laziness. a floor that walks for you. gimme a break.

I think the point of those in airports is so that people can get places faster, by continuing to move under their own power while on them, thereby getting people places twice as fast.