Emanuel Derman on Uncertainty
“….In physics you have absolute values. If you want to shoot a rocket to the moon, you can use Newton's laws and the gravitational constant. In finance you can't make absolute predictions. You try to figure out the value of something by relating it to the value of something more simple…”
Thought I would toss that in...Smile. Market jumped 2 points, trend traders immediately sold it but will they succeed in keeping it down? Going to be harder for them to do so.
Back to Derman's comments, keeping this simple has always been an objective. I can tell and come pretty close to determining when 2 polynomials are going in the same direction or not, and at about what data point in time they begin or end going in the same direction or not.