Sludge vs Protective Friction

The distinction between sludge and protective friction is the most practically important analytical tool for navigating the central debate of the AI transformation. Sludge — the term Sunstein developed in his 2021 book of the same name — is friction that serves only the institution imposing it or no one at all: bureaucratic delays, deliberately complex opt-out processes, configuration tasks that should have been automated. Protective friction is friction that serves the person experiencing it, often against their immediate preference: cooling-off periods before major financial transactions, informed consent requirements, the struggle through which skills are built. Both are experienced identically in the moment. Both feel like obstacles. The difference is revealed only later, or only through structural analysis, and the failure to distinguish between them produces the uniform anti-friction ideology that characterizes both the triumphalist and elegist positions in the AI discourse.