“…The identification and definition of epistemic possibility is relatively unproblematic. In Depraetere and Reed (2011), which is focussed on non-epistemic possibility, the authors argue for a taxonomy which pins down, in a more explicit way, categories of meaning that are not ability and not permission. The taxonomy distinguishes between general situation possibility (GSP), permissibility, permission, opportunity and ability and it is based on a clear set of defining parameters, which are systematically used to define the different categories of meaning: (a) scope of the modality (wide scope or narrow scope), (b) source of the modality (subject-internal or subject-external) and (c) potential barrier.…”