Congestion
You've Been Merging Lanes Wrong This Whole Time
Picture it: You’re stuck in traffic on a two-lane highway, and the lanes converge into one up ahead. You merged early. You're patiently waiting your turn when some jerk zooms by, goes all the way to where lane ends, and merges in 15 cars ahead of you. That person is infuriating. But also they're improving efficiency for everyone.