Positive friction

In 2006 Aza Raskin invented infinite scroll, the pattern that removed the last piece of effort from consumption, the click to the next page. He has spent much of the time since publicly regretting it, and his regret is worth taking precisely, because he is not apologizing for a bug. The pattern worked. Removing the pause removed the moment where a person asks whether they want to continue, and industry adopted it for exactly that reason. Frictionlessness was never a gift to the user; it was the removal of the user’s exits.

The regret points at the deeper error in the orthodoxy, which is the assumption that effort is a pure cost. The behavioral evidence runs the other way. The IKEA effect, documented by Norton, Mochon, and Ariely, finds that people value what they labored to make, in proportion to the labor, above objectively identical things they received finished. Kahneman’s line of work adds the cognitive half: disfluency, the deliberate small difficulty, engages the reflective system that smooth processing bypasses. Together they describe a mechanism, not a preference. Worth accumulates through effort the way relational equity accumulates through showing up, which means an interaction stripped of all effort has been stripped of the machinery by which it could come to matter.

This is why the products people credit with improving their lives so often ship deliberate difficulty. Forest makes you stake a tree on your focus. Opal makes leaving the block screen cost a decision. A capped group chat goes honestly quiet instead of refilling itself. None of this friction is failure of craft; it is the craft, placed where a pause serves the person rather than the session length.

So the design instrument is a friction budget, allocated rather than minimized. Identify where value actually forms in the product, the relating, the reflecting, the choosing, the making, and protect the effort there, because that effort is the mechanism. Then spend the smoothness lavishly on everything that is genuinely overhead: forms, payments, waiting. The orthodoxy got half of it right. Friction in the debris is waste. Friction in the substance is the point, and a product that cannot tell its substance from its debris will sand away exactly the part the user came for.