To explain my perspective on open-mindedness, I need to first explore closed-mindedness.
Many of us here on the SDMB would classify themselves as a skeptic. I’m quite confident that most of us at one time or another, in our quest to fight ignorance, have been accused of being closed-minded. Closed-minded regarding all sorts of topics from astrology to palmistry; from mind-reading to spoon-bending. And on and on.
However, skepticism does not equate to closed-mindedness.
It is true that skeptics reject insubstantial evidence. But good skeptics do not simply reject any evidence conflicting with their current beliefs. Skeptics are always willing to consider good evidence or arguments in favor of an opposing claim. Skeptics follow the scientific method to arrive at provisional acceptance of theories. The degree of support for those theories can always change if new evidence arises to contradict the current theory, or new theories arise that better explain the evidence.
It seems to me that *open-mindedness is recognizing that what is currently believed is provisional. *
But open-mindedness does not mean being blindly open to any ol’ idea that could possibly explain the evidence. As I’ve heard stated numerous times, everyone is entitled to an opinion, but not all opinions are equally valuable. Skeptics believe the theory that best explains the evidence (without the intervention of the supernatural).
In addition, I think there is another aspect of being open-minded which is more behavioral than it is philosophical.
I think the reason we sometimes get painted with the closed-minded brush is because it is hard to remain patient with people who dogmatically hold beliefs that are unsupported by any evidence at all. Or worse, beliefs where there is plenty of evidence that those beliefs are false. It is frustrating to try to have a discussion with someone who is willfully ignorant. And the word “willfully” is important here. I am very understanding of ignorance if the person desires to become less ignorant. In spite of my age and experience, I myself remain quite ignorant in many matters. But I don’t discard evidence just because it conflicts with my current beliefs. I relish the new information.
This quest for knowledge requires a balance of advocacy and inquiry. All too many times, we spend all our time advocating our positions. I’m right and you’re wrong. All this does is put the other person on the defensive and results in them accusing us of being close-minded when we “win” the debate. Sincere inquiry can be very effective. Saying “Hmmmmm, that is interesting. We have come to different conclusions. Help me understand. What is it that leads you to your conclusion? What do you see that I don’t see?” Granted, this approach is pointless with someone who has no insight into how they’ve arrived at their beliefs, or if those beliefs are held purely on faith.