In my previous post I laid out what I did and did not mean by the term “rationality”. While I addressed what I consider to be misconceptions around the word rationality and how self-described rationalists would behave, I do think that there are some common problems that real-life rationalists run into in practice. In this post I want to discuss some of what these failure modes are, and what generates them, in the hope of helping others to recognize and avoid them.
The Crusaders
“That which can be destroyed by truth should be.” – P. C. Hodgell
This quote is greatly admired by our rationalist community, as you might expect. Given our aesthetic preference for truth, we want the divine light of evidence to burn away all of the unclean falsehoods that lurk in the unexamined parts of our minds… For those who value truth above all else, this may in fact be the best course of action to apply to their own mind. (The resulting structures formed by this procedure also have an attractive property: that they are robust to reality – revealing known true information cannot damage them, unlike many of the social constructs we pretend exist.)
Our friend Michael Vassar has a great response to this quote: “That’s like saying anything that can be destroyed by lions should be.” [Read more…]