I pick the scenic route from Madison WI to the Dells. Old highway 51. 20% slower, 1000% more interesting.
Google Maps lets me do that. And five minutes later it reroutes to a faster way. The freeway.
The AI maximizes utility. Once my preference counted, but now only speed matters. The human makes too many low utility choices.
So I add a waypoint. It seems to pin the right route. Once I hit the waypoint though the route flips again. It needed more waypoints to keep on track.
Finally, frustrated, the AI sulks, rerouting endlessly.
This is the future.