“…Thus, mapping the spectrum of understanding is not a trivial task. For instance, some accounts have offered suggestions about the evaluation of degrees of understanding (Baumberger, 2019;Kelp, 2015;Khalifa, 2017;Petkov, 2021), and specified some of the conditions of understanding, approximate understanding, and the failures to achieve understanding (Park, 2017(Park, , 2020. Given this rich literature and its recent developments, we believe that we can present an updated and unified account focused on explanatory understanding, and then use such an account to present a more systematic and expanded study of the conditions under which explanatory understanding cannot arise.…”