strategy, chaos and morality
Do not attempt to strategize in an environment where there are just way too many unknowns. A strategy can succeed only when you can "anticipate" and "adjust". If you can not anticipate, all you will end up doing is constant revision. When there is chaos and panic, just follow the trend and panic.
Do not whine about how irrational the markets have been behaving lately. The set of rational strategies changes along with the market conditions. However if you are too arrogant and slow to "adjust", these shifts will go unnoticed.
Do not stick to moral principles. Principles lead to predictability and predictability is a weakness. If other actors can anticipate your behavior within reasonable bounds, they will push you to a corner from which you can exit only by violating your principles. Soon you will find yourself outside the game.