This is an informed and useful discussion of what is missing for the creation of a 'skills economy' (currently and still the core concept behind commercial ed tech). With respect to the skills, Michael Fedstein (quite correctly, in my view) argues against the development of a 'skills taxonomy' in most cases. As for the economy, the possibility of an economic transaction is missing. "Employers need skills. What's been missing is the ability to assess the match cheaply enough for the transaction to happen." There is room for movement in this field, but it will take rethinking about what we even mean by a skills economy. "What a skills economy needs, then, isn't better definitions of what individual skills 'really' are. It needs infrastructure that lets two parties point at the same thing, with attached evidence to claims about it, and make a judgment about whether the match is close enough for the transaction at hand."
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