Aaron,
You'll have to read the book, or at least get hold of a copy of his client newlsetter, Portfolio Strategy Letter. Worth it if you have long-term investments.
Tampa - personally, I think its better not to confuse trading the S&P for half a point, which is not investing, with investing in instruments for long-term gain. Of course, you might invest in a fund that trades short-term, or even trade mutual funds. I'd agree that all trading & investing is speculative by nature, but still important to be clear about the difference between the two.
J.