These slides trace the gap between how systems are built to work and how people actually think – from "the logic is correct" to "users still can't use it."

Each slide digs into the tension at the heart of human-computer interaction and makes one thing clear: the goal isn’t to fix people, it's to design systems that make their behaviour work instead of breaking under it.

For a full definition and a breakdown of how human-computer interaction works, check our glossary article on human-computer interaction.