Love this analogy because you can extrapolate it even further.

I'm the kind of guy that travels the first 80% on the highway, reaches the traffic-bloated city, and actually makes a U-turn to head towards a totally new city, thinking "I'll visit that city later".

Or, quite often, halfway towards my destination (let's say 40%), I'll see a board saying "Next exit: even better city", and take that exit. After taking a few of these exits, I will have spent hours or even days on the highway, without having reached any city, or even coming close to one.