Cofty,
Ditto about exposing one's self to the very best arguments for and against personal beliefs. Anyone who has obtained a master's degree has likely completed a thesis or major research paper that requires something called a review of the literature. A PhD typically requires it. And by a review of the literature it isn't talking about Harry Potter or Wikipedia; it is a requirement that the student closely evaluate all of the academic 'evidence' that exists on the question or hyothesis they are trying to answer or address. This should include all of the data, not just that which supports the student's premise. I've referred to it previously as a 360 degree analysis of a subject.
That is the only way someone will truly learn a subject, and it certainly is the only way someone can learn it well enough to teach it to others at the college level (you may get away with it in high school or grade school). But it requires an open mind and a true desire to find the truth, or as much as possible, about a topic. Dubs and ex-Dubs, from what I can see from being on this site for about a year, don't seem to understand that. The same mind-set that trapped them in the Borg seems to follow them along in life. Or leads them rather. Snare and Oubilette, who I understand is a science teacher, know this well. It also takes humility, as you often find that cherished 'beliefs' fall by the wayside when the stark cold facts of a matter are revealed.
All of us should have been humbled by our Borg experience. What we thought with all of our minds and hearts turned out to be pure rubbish. It's a shame we don't see more humility and desire to truly learn something on this site.