Indeed we must not try to avert crises; we must make them more manageable
We need to be very aware that this crisis is turning out to be one of the worst ever just because our regulators in their sincere but silly efforts to avert a crisis, introduced some minimum capital requirements for banks based on what they wished to understand as risks and empowered the credit rating agencies as their global risk surveyors. These man-made artificialities created and leveraged some awful systemic risks.
Of course, like Benn Steil mentions, we also need some basic operative “fail-save” solutions, like adequate clearing houses that can safely assure us that our expected small net exposures are not turned into irreconcilable monsters.