CONCEPT
The Friction Requirement
The empirical thesis — derived from Ericsson's four conditions of deliberate practice — that practice only produces improvement when it is effortful, targeted at capability boundaries, feedback-rich, and iteratively refined.
The friction requirement is the Ericsson framework's central and most counterintuitive claim: that the subjective experience of struggle during practice is not an obstacle to development but the mechanism of it. Practice that feels easy is not merely less effective than practice that feels hard — it is typically ineffective, producing maintenance of current performance rather than development of new capability. The four conditions Ericsson identified (effortful engagement, boundary targeting, specific feedback, repetitive refinement) are jointly necessary, and each is eliminated in turn by AI tools that optimize for the removal of difficulty. The friction is not a byproduct of inadequate tools that better tools should eliminate; it is the signal that cognitive structures are being pushed to adapt. Remove the friction and you remove the signal — and with it the adaptation.
In The You On AI Field Guide
The experimental foundation for the friction requirement spans decades. Motor learning research shows that blocked practice of a single skill produces better