Your warning that the crisis is far from over, and that the re-emerging appetite for risk may be quite perilous, is surely well taken (“Not So Fast,” June 20, 2009). But warnings like yours now come along together with so many cheers about green shoots of all sorts. Those who have led us into this recession, which threatens to stretch into another protracted depression, cannot change their mindset in a year or two. In fact, they cannot change it at all. Their appetite for risk is forever insatiable. Set in their ways, they are likely to push their luck over and over again, until they perish altogether. One of the reasons for depressions may be that those who have created them must vanish from the scene before a new beginning. In the meanwhile, our lot is mayhem.