"African philosophy," when conceived of as ethnophilosophy, is based on the idea that all thought is social, culture-bound, or based in natural language. But ethnophilosophy, whatever its sociological status, makes no contribution to philosophy, which is necessarily invulnerable to the sociological thesis. The sociological thesis must be limited in application to its own proper domain. The conflation of sociological and philosophical discourse arises from the fallacy of misplaced concreteness. This fallacy is responsible, among other things, for the sociological misinterpretation of (...) Wittgenstein. African philosophy, to be thought philosophical, must conceive of itself as addressing universal problems instead of pursuing intellectual apartheid. (shrink)

Popper's thesis that the growth of knowledge lies in the emergence of problems out of criticism and takes place in an autonomous world of products of the human mind (his so-called world-3) raises two questions: (1) Why does criticism lead to new problems, and (2) Why can only a limited number of tentative solutions arise at a given time? I propose the following answer: Criticism entails an overlooked evolutionary world-3 mechanism, namely, the migration of piece meal conceptual schemes from one (...) research tradition to another. Popper by passed the questions above because he relied very heavily on the selective power of criticism. (shrink)