Move the step slider to watch your trader think. Pick the rule he follows and the initial conditions for the first three days of the week. The trader looks back over the past three days in considering what to do. The big circles are states, like the emotions of the trader. He always starts in state 1 and then follows the arrows that correspond to the market movement (UP or DOWN) of the day under consideration. The yellow state is the one he was in when he started thinking about the day in question, and the one with the square in it is the one he will move to, based on the yellow arrow that he follows. His "current thinking" is shown on the yellow arrow, too (BUY or SELL), but he only makes his final decision when he has reached the last day that he considers.