"Tragically, before the proliferation of empirically blind idiot savants, interesting work had been begun by true thinkers, the likes of J. M. Keynes, Friedrich Hayek, and the great Benoit Mandelbrot, all of whom were displaced because they moved economics away from the precision of second-rate physics. Very sad. 'One great underestimated thinker is G.L.S. Shackle, now almost completely obscure, who introduced the notion of "unknowledge"', that is, the unread books in Umberto Eco's library. It is unusual to see Shackle's work mentioned at all, and I had to buy his books from secondhand dealers in London."