Price is an integral part of the model, but not singularly determining. I wish you guys go and read back the type of exchanges we had on Steve's channeling thread in the May 22/ August 22 2001 period, every single 50 Naz points bounce was greeted by "that is it", the rally resumes. I think that at the time Hal managed to get at least two whipsaws. When looking at prices only there is more chance of a bad whipsaw (even when looking at a plurality of factors, that chance is far from nil).