Dalio and open-mindedness

When most people hear me describe this approach, they typically say, “No problem, I’m open-minded!” But what they really mean is that they’re open to being wrong. True open-mindedness is an entirely different mind-set. It is a process of being intensely worried about being wrong and asking questions instead of defending a position. It demands that you get over your ego-driven desire to have whatever answer you happen to have in your head be right. Instead, you need to actively question all of your opinions and seek out the reasoning behind alternative points of view. 

-Ray Dalio 

This is foundation for any good research process. You do not defend a hypothesis, but test it and see if it holds up to review. Open-mindedness offsets the over-confidence bias that we often have with our investment views. Open-mindedness mean open to change when presented with new facts.