So a couple of weeks ago you were thinking of selling these signals that you have such little confidence in?

Have you read Gregory Zuckerman's book on Jim Simons (The Man Who Solved The Market)? You can submit the same question incredulously to Simons, a consummate mathematician, as he was plagued with emotional discomfort even after decades of nearly surreal returns, irrationally pulling the plugs on his machines due to his emotional uneasiness on occasion. Emotional comfort and intellectual confidence are not mutually inclusive. It's emotionally difficult to bet against the heard even if a mathematical formula with an excellent supporting record indicates that's the appropriate gesture. Presumably, we're all interested in stripping the emotional baggage that often gets in the way of buying and selling assets for a profit, but it still hovers in the background of this discipline even if it's been successfully removed from decision-making.