“This Is Going to Change the World” (The Failure of the Segway)
slate.com
slate.com
To me, this marketing strategy is what killed the Segway. Every news station in my area described it as if it were controlled by human thoughts. I suppose you could argue that it's technically true, since your thoughts are what cause you to lean forward, but it's such a scummy sales tactic that I could never take it seriously after that.
I think the conclusion is spot on though, nowadays electric scooters are pretty much where Segway wanted to be (and I have to think this may have more to do with battery tech not being there at the time). And while we didn't completely rethink cities, one can argue the significant increase of bike lanes in some parts of the world had been fueled, at least a bit, by those newer electric "people movers".
One plan was to add some lateral correction to the unicycle to aid learning and safety. But it never happened for some reason.