Larry Summers is an "advisor" for Andreessen Horowitz (and presumably gets paid $$$). Marc Andreessen is on the board of directors for Facebook and probably has

Larry Summers is an "advisor" for Andreessen Horowitz (and presumably gets paid $$$). Marc Andreessen is on the board of directors for Facebook and probably has a bit of stock. His comments are thus easily explained by financial incentive. Larry Summers is doing exactly what he gets paid to do... "advise".