This Freeman Dyson article/review at the New York Review Of Books has many interesting points in it, and the new James Gleick book it discusses sounds like a title I’ll need to get my hands on at some point (his biography of Richard Feynman is a fascinating work). But there was a pair of sentences that really just leapt out at me, and I offer them here without further comment (but with a little emphasis):

Among my friends and acquaintances, everybody distrusts Wikipedia and everybody uses it. Distrust and productive use are not incompatible.