I read a nice article last year actually in which Haken took the notion of an affordance and suggested that there is a ( somewhat mysterious ) " cognitive gradient " ( because the organism * needs * something * ), after the manner of a thermodynamic gradient, in which the brain self-organises to detect the affordance.
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Lawrence Lessig welcomed the platform's affordance of Creative Commons licensing for user content, a feature demonstrated in a Medium project with " The Public Domain Review " an interactive online edition of " Alice's Adventures In Wonderland ", annotated by a dozen Carroll scholars, allowing free remixes of the public domain and Creative Commons licensed text and art resources with reader-supplied commentaries and artwork.
