> Incredibly, it doesn't matter how educated the developer, they still seem to have to learn this lesson themselves, over and over, until it sinks in... That's

> Incredibly, it doesn't matter how educated the developer, they still seem to have to learn this lesson themselves, over and over, until it sinks in... That's probably because many devs were socially isolated when growing up. (How do you think they got so much time spent tinkering with computers?) Also, it is generally hard to imagine yourself in other's shoes. Example: imagine trying to use your UI but with a 60-year old vision instead of that of a 20-yo. Example: imagine having no formal address or no citizenship (stateless).