No, because not all factors are equally relevant. While there are a multitude of factors, not all are statistically significant, but some are. The best available information shows value, size, profitability, and reinvestment seem to be the most statistically significant. It could be entirely coincidental, but that's unlikely. Considering all this, slanting towards these factors seems likely to improve returns, though it's not guaranteed. Guess after guess after guess. I know we all WANT economics to be a science like physics. But it's not. Not enough data points to make "statistically significant" conclusions. And the rules change decade to decade (Congress, SEC, globalization, etc.) so even the limited data points from the past ...