Heh, you're right, I suppose I didn't correctly specify that criteria.

The point was, not, "every expert in these fields is untrustworthy". Singer/Aristotle/Nietzsche etc have already been vetted by generations that their thinking is good.

However, the random philsophy professor on the street, you should be far more skeptical of, they haven't gone through that post-hoc feedback process, and they haven't gotten (as much of) the real time feedback that would cause them to get things right merely from their training.

I think in Aristo