You cannot mistake Bush's clarity of purpose. He believes in a story about freedom and opportunity that makes his followers feel like they aren't just ticking their days down but are part of something larger than themselves. ↗
There are considerable advantages to using many degrees of freedom to store information, stability and controllability being perhaps the most important. ↗
During periods of extreme fear or greed, you don't have the proper balance between those two to generate market efficiency and you get extremes in behavior. ↗