If we are good at maximizing, we will bring about whatever situation we judged best. If somewhere across the many possible situations to judge we make an extremely upward error, we will bring about that situation and end up with that random outcome. If the error is downward, we will only fail to bring about that situation, which is an opportunity cost if that was one of the better outcomes but not a disaster.
Could you explain this step
If we are good at maximizing, we will bring about whatever situation we judged best. If somewhere across the many possible situations to judge we make an extremely upward error, we will bring about that situation and end up with that random outcome. If the error is downward, we will only fail to bring about that situation, which is an opportunity cost if that was one of the better outcomes but not a disaster.