After thinking about it, I'm going to go out on a limb and CLAIM:

A belief which is not justified by evidence is inaccurate.

People dislike posts that assert a claim without justification so here are my arguments:

(1) the absence of evidence is evidence of absence

(2) it would be misleading and overly positivist to say that an opinion based on no evidence is "possibly accurate"

Ironically, these are things I've learned on LW. Now, are you guys self-consistent or not?