Cowen daydreams:

In the longer run I expect "annotated" books will be available for full public review, though Kindle-like technologies.  You'll be reading Rousseau's Social Contract and be able to call up the five most popular sets of annotations, the three most popular condensations, J.K. Rowling's nomination for "favorite page," a YouTube of Harold Bloom gushing about it, and so on.

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