How do you determine what is "intelligent" and thus worth listening to and what is not? How can you rely on your inherently very flawed human genetic machine to

How do you determine what is "intelligent" and thus worth listening to and what is not? How can you rely on your inherently very flawed human genetic machine to not fool you into various thought patterns that have no rational basis at all, but just serve your tribe, your family, or your short term self interest?