In the wake of the worst financial crisis in recent memory, is there an opportunity for unconventional schools of thought to force their way into the investing consciousness?

The investment industry is spotted with “cranks” – fund managers, brokers and advisers who distrust the whole structure of the economy and markets and believe that returns can only be made by exploiting the inherent flaws. (They are distinct from the large number of fund managers who adopt “contrarian” market views.)