Another head-scratcher from Jason Brennan’s BHL piece on meta-philosophy (timestamp: 10:16 am, February 12, 2020):
Second, what people believe tends to depend a great deal on who their advisors were. People who go to Harvard tend to come out Kantians of some sort. People who go to Arizona tend to come out Gaussian contractualists or Schmidtzean pluralists. Now, some of this is due to selection–the Kantians are more likely to apply to Harvard than, say, consequentialist ANU. Part of it, though, is that when you attend a program with people who defend X, you encounter much better arguments for X and weaker arguments for other positions. But this seems to a rather unreliable mechanism for changing your beliefs. A Guassian contractualist like Kevin would have ended up believing something else had he gone to a different program. Is it just lucky for him he attended Arizona and not Harvard? Is it just lucky for him that he had Gaus as an advisor instead of Christiano, Schmidtz, Wall, Pincione, or someone else?
Isn’t this the kind of claim that requires bona fide empirical support? I don’t see any here. I just see Brennan recording his quasi-empirical impressions of a handful of institutions, followed by a gigantic epistemic generalization about the whole profession. Forget selection versus treatment effects. A treatment effect presupposes an effect. Not obvious there is one. Continue reading →