Duplication theory of educational value

An insightful blog post by George Siemens positing that what is valuable in Higher Education "is that which can’t be duplicated without additional input costs: personal feedback and assessment, contextualized and personalized navigation through complex topics, encouragement, questioning by a faculty member to promote deeper thinking, and a context and infrastructure of learning. Basically: human input costs make education valuable" (Siemens, 2011)