 Radford’s intuitions about cases like these do not seem to be idiosyncratic; Myers-Schutz &amp; Schwitzgebel (2013) find evidence suggesting that many ordinary speakers tend to react in the way Radford suggests. In support of (a), Radford emphasizes that Albert thinks he doesn’t know the answer to the question. He doesn’t trust his answer because he takes it to be a mere guess. In support of (b), Radford argues that Albert’s answer is not at all just a lucky guess. The fact that he answers most of the questions correctly indicates that he has actually learned, and never forgotten, such historical facts.