For most people investing revolves around the application of rules. Buy stocks with P/E ratios below X and have Debt/Equity ratios below 0.5. Index investing is better than active strategies, which is better than value investing. The reality mechanical strategies work until they don’t. In the third of our five part series, I dig deep further to look beyond mechanical investing strategies and examine the importance of how tendencies, principles, and to a certain extent fate, play critical roles in the setting of stock prices and how we frame our investment decisions. I also look at how we react to what market does, can also be a critical factor to setting stock prices and what investing competencies we need to develop to manage these tendencies to make more successful investment decisions.