One has to make a distinction between dialectic situations, where you are trying to get at the truth, vs. rhetorical situations, where the attempt is to convinc

One has to make a distinction between dialectic situations, where you are trying to get at the truth, vs. rhetorical situations, where the attempt is to convince others (often not the person you are speaking with) of the truth. For example, trotting out cognitive biases in a rhetorical situation is often very effective, particularly when your opponent is operating in a dialectic mindset. Know thyself, but also know thy situation.