Is it because they think they can do it while no one else can? Let me know folks.
...within the apparent randomness of chaotic complex systems, there are underlying patterns, constant feedback loops, repetition, self-similarity, fractals, self-organization...
based on Chaos theory, I would say they are trying to time the market by figuring out the patterns and repetitions of market behaviors
if you one of the chaos theory believers, you believe in this chaotic world there always a hidden pattern behind everything
and there is no completely random pattern only possibly not yet known complex pattern