The twin marvels of truly awful weather and systemic market meltdowns have a lot in common. First they feed on persistent disequilibria in their respective systems – weather systems feed on temperature and pressure differentials which can only be resolved through long time frames for adjustment or short term violence – storms. Similarly, economic and financial disequilibrium tend to be founded on regulatory or information impediments, leading to persistent positive feedback loops – first running markets up, and then, inevitably, leading to collapse.