In this chapter the concept of a horizon is interpreted using the unifying formalism. Three distinct types of horizon are distinguished. The horizon can either correspond to our immanent sense of the rest of an object (beyond what is immediately apparent in sensory experience) or to one of several counterfactual structures, that correspond to how an object is expected to look relative to different movements.
Yoshimi, J. (2016). Horizon Theory. In SpringerBriefs in Philosophy (pp. 53–58). Springer Science and Business Media B.V. https://doi.org/10.1007/978-3-319-26698-5_7