Investing Strategy: Could it be this simple? Part II

In a previous post I reviewed a strategy called the Foolish 4. It appeared to be a very simple investing strategy which historically beat the Market.

However it turns out that even though it historically beat the market, it has not done will in the following years 2000 to 2008. I'm not sure why but I found that interesting.

I guess it just shows the age old truth: Past performance does not indicate future performance.