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Title: Almost no help for practical trading.
Review: None of the authors has wall street experiences, and almost all the references of the book were 10 years old, if not older. The claimed weekly non-random walk is based on the very old market data when stocks were almost the only security available. With the advance of internet and global markets, as well as the other (derivative) securites, the stock market is no more a single focal point. I suspect even the claimed is true, the cycle is much shorter now due to the maximum entropy can be reached within much shorter time in today's information era.
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