 Barbara Vetter has recently expanded her work on the metaphysics of potentiality (2015) and developed a perceptual account of modal knowledge based on every-day cases and affordance views of perception (see Gibson 1966; see also Nanay 2011, 2013). According to Vetter (2021), we literally see potentialities or possibilities as part of the content of our perception. In her (forthcoming) she emphasizes that her account is ambitious. In her view, all of our modal knowledge is based on knowledge of our own abilities and dispositions, as well as the dispositions and affordances of objects around us. Modal knowledge is, thus, for Vetter, distinctively empirical, in that it requires experiencing such dispositions and affordances.