(ii)  The centerpiece of Keynes’ theory is the existence of inescapable uncertainty about the future which implies that risk cannot be measured precisely beyond a point, and that taking uncertainty seriously has profound implications for how one applies economics. Look at the parallel in physics.
Today, the primary responsibility of the New York office is to develop a channel for a candid dialogue with respectable people widely in the region it covers, that is, both North and South America, but the crucial part is of course the United States, above all, Federal Reserve officials and banking communities here.