Confirmation Bias
Confirmation bias apparently affects all of us. Simply put, we tend to first form an opinion, and then look at the evidence supporting that opinion. If evidence to the countrary is presented, we either downplay it or outright ignore it.
Systems intelligence is all about acting in ways that take into account the true systems we participate in, in our daily lives. The point being “true” systems as opposed to systems we would like or believe we participate in. To me, this strongly suggests that a systems intelligent person does his best to avoid confirmation bias.
Systems thinking as a method allows us to consciously assess evidence and reject any bias—including confirmation bias. Systems intelligence gives us the skill to unconsciously reject confirmation bias, to act and react with a suitable amount of skepticism.
To me, this suggests that a systems intelligent person by nature strongly rejects pseudoscientific thinking, and exhibits a clear tendency to apply the scientific method.