Joel Mokyr & Robert Gordon Debate: Has All the Important Stuff Already Been Invented? http://on.wsj.com/2qnfGzX
-
-
Tension between Mokyr's optimism and Gordon's pessimism.
Thanks. Twitter will use this to make your timeline better. UndoUndo
-
Loading seems to be taking a while.
Twitter may be over capacity or experiencing a momentary hiccup. Try again or visit Twitter Status for more information.