 That is, although one may at times (perhaps even frequently and systematically) stray from the path prescribed by logic in one’s thinking, one nevertheless counts as a thinker provided one appropriately acknowledges logic’s normative authority over one’s thinking. Consider again the game of chess. In violating the rules of chess, deliberately or out of ignorance, I can plausibly still be said to count as playing chess, so long, at least, as I acknowledge that my activity is answerable to the rules; for example, by being disposed to correct myself when an illegal move is brought to my  attention.[11]  Similarly, all that is necessary to count as a thinker is to be sensitive to the fact that my practice of judging, inferring, believing, etc., is normatively constrained by the laws of logic. It is not easy to specify, in any detail, what the requisite acknowledgment or sensitivity consists in. A reasonable starting point, however, is provided by William Taschek who, in his interpretation of Frege, proposes that acknowledging