These categories do not reside in the world as distinct forms of 'knowledge'...they derive from the nature of the new practice generated by sequestration. 'Abstraction' in this sense stems from the disconnectedness of a particular cultural practice. 2/*

[Participation] is neither more nor less abstract or concrete, experiential or cerebral, than in any other...legitimate peripheral participation as the core concept of relations of learning, places the explanatory burden for issues such as 'understanding' and 'levels'... 3/*