I still don't buy this whole random walk shit. Maybe I'm not understanding it correctly, but when I look at financial charts, its definitely not "random".
For example, when I look at $TICK, or some weird bond instrument, yes THEY look completely randomized. But looking at price action, theres a harmonic rhythm within the prices.
We know the avg return is normally distributed, and price is log, or Brownian, or whatever technical term you want to associate with the movement of prices.
Yes, no need to buy that it's definitely not random.... you can use some brain power and a blank chart with no indicators and come to that conclusion.