As stated by John D. Farmer in the book "The Predictors" by Tom Bass (http://www.amazon.com/gp/product/B0000AZW7U/sr=8-1/qid=1150383932/ref=pd_bbs_1/103-0249832-1076638?%5Fencoding=UTF8) the stock market is predictable from time to time. He speaks about "pockets of predictability".
J. Farmer...