Flow: The Underrated Design Superpower

What's the one thing about human attention that most designers never learn to use on purpose? The question "What's the one design principle that you think is massively underestimated even by experienced designers like yourself?" This one comes from Martin's own list, not a listener submission. Thorbjørn takes it as a chance to name three principles he thinks go under-used outside game design: flow theory, actually understanding a problem before jumping to a solution, and emotional design. Flow theory ends up carrying most of the conversation from there. What we talk about Thorbjørn walks through what actually produces a flow state: a clear goal, a challenge that matches your skill, and feedback that comes back immediately. He and Martin tie this to three different kinds of design problems that each create those conditions differently: games (where the designer defines the goal outright), personal apps like Duolingo (solving one immediate desire), and enterprise software (solving the business's problem through a tool built for someone else to use). Some apps are built to produce a flow state on purpose. Thorbjørn points to TikTok and YouTube Shorts as the most dominant examples, engineered to make you lose track of time entirely. Other designs exist specifically to break that state: Netflix's "are you still watching?" prompt, session-limit warnings on gambling sites, and even something as small as a delete confirmation, which counts as friction doing its job on purpose. They also touch on genuinely dangerous, high-stakes situations, like bomb disposal, where flow is still useful but has to come from real experience rather than an interface trying to induce it. Daydreaming comes up as a way into flow that needs no outside help or equipment at all, something Thorbjørn calls a superpower for creative people. That leads to a bigger question: can a whole stretch of someone's life, being a teenager, being in love, count as one long flow state, rather than something that only happens task by task. Mentioned in this episode From Hidden By Design Flow (S1E5) — the earlier Hidden By Design episode on flow theory that this conversation keeps referencing; Thorbjørn and Martin disagreed on air about which season it was in (Thorbjørn was right). Emotional Design (S1E11) — the earlier episode on the visceral/behavioral/reflective framework, named on air only as "we had an episode about emotional design." The Brain (S1E3) — the early episode on how the brain works and Kahneman's automatic vs. reflective thinking, remembered on air only as "episode two or something." Also mentioned Duolingo — cited as a B2C example of an app solving one immediate, individual desire. Claude — mentioned as an example of how easy AI tools now make it to build something before checking there's a real problem behind it. TikTok — cited as one of the most dominant examples of an app engineered to produce a flow state on purpose. YouTube Shorts — cited alongside TikTok for the same reason. Netflix's "are you still watching?" prompt — cited as a deliberate flow-breaker for long viewing sessions. Got a question of your own? Got a design question or dilemma you're stuck on? Send it to Thorbjørn and Martin through the contact form at hiddenbydesign.net and it might become a future episode.