There is a deep deep bias on LW of thinking that truth is the only aspect of belief that has value.
It's not a bias, but an expected-value calculation. Most falsehoods are utterly useless to believe, along the lines of "The moon is made of green cheese." Merely affecting a belief-in-belief can be useful for the vast majority of other cases without actually spoiling your own reasoning abilities by swallowing a poison pill of deliberate falsehood in the name of utility.
The issue is that without possessing complete information about your environment, you can't actually tell, a priori, which false beliefs are harmless and which ones will lose and lose badly.
When you have a sophisticated meta-level argument for object-level wrongness, you're losing.
The issue is that without possessing complete information about your environment, you can't actually tell, a priori, which false beliefs are harmless and which ones will lose and lose badly.
I am not sure what is the point that you are making. Without "possessing complete information about your environment" you actually can't tell which of your beliefs are true and which are false. Humans make do with estimates and approximations, as always.
Just came across this interview with Robert Aumann. On pgs. 20-27 he describes why and how he believes in Orthodox Judaism. I don't really understand what he's saying. Key quote (I think):
Anybody have a clue what he means by all this? Do you think this is a valid way of looking at the world and/or religion? If not, how confident are you in your assertion? If you are very confident, on what basis do you think you have greatly out-thought Robert Aumann?
Please read the source (all 7 pages I referenced, rather than just the above quote), and think about it carefully before you answer. Robert Aumann is an absolutely brilliant man, a confirmed Bayesian, author of Aumann's Agreement Theorem, Nobel Prize winner, and founder / head of Hebrew University's Center for the Study of Rationality. Please don't strawman his arguments or simply dismiss them!