"Keynes’s own experience told against Hayek’s theories. As one of the 20th century’s most successful speculative investors, playing the markets on behalf of his college from a phone at his bedside before he got up for the day, he understood – in a way that the inveterately professorial Hayek did not – the ineradicable uncertainty of economic life. As a member of the British delegation at the Paris Peace Conference in 1919, Keynes had been horrified at the punitive conditions imposed by the Allies, which he forecast would destroy the German economy and lead to an upheaval that would “submerge civilisation itself”. Keynes had an acute sense of the risks posed to social stability by misguided economic policies. In contrast, Hayek consistently ignored these hazards."