Since that does not seem likely to be the sort of answer you’re looking for though, if I wanted to bridge the inferential gap with a hypothetical Sneer Clubber who genuinely cared about truth, or indeed about anything other than status (which they do not), I’d tell them that convention doesn’t work as well as one might think. If you think that the conventional way to approach the world is usually right, the rationalist community will seem unusually stupid.

get in the fucking locker