 Since the first introduction of the term “narrow content,” some authors have doubted that there is any useful concept for it to capture (see e.g. Stalnaker 1990; Burge 2007, pp. 11–13). The most sustained critique of narrow content is a relatively recent book, Narrow Content, by Juhani Yli-Vakkuri and John Hawthorne (Yli-Vakkuri and Hawthorne 2018).