Title is editorialized because the original is, frankly, clickbait garbage

  • Water does not think, it flows where it can.
    People while driving cannot know which route isn’t clogged, because cars are not flowing like water. If that would be the case all the small streets around main roads would be full too. If a street is clogged, and the driver sees it, they can decide to go on a different route, but in waze if they are using it to plan a route, it’ll try actively to avoid roads that are too busy.

    • If that would be the case all the small streets around main roads would be full too.

      They are. If they aren’t then your city is not really that busy. It’s actually a major problem in some cities for the residents of small residential streets that suddenly start getting lots of traffic because their street gets recommended on Waze or Maps.