John Gray takes a fresh look at the thinking of John Maynard Keynes and wonders what he would have really thought about the current economic crises and how to solve them. "It's still Keynes from who we have most to learn. Not Keynes, the economic engineer, who is invoked by his disciples today. It's Keynes the sceptic, who understood that markets are as prone to fits of madness as any other human institution and who tried to envision a more intelligent variety of capitalism".