The Nature of Shadows, from Yale to Bilkent

I discuss a solution to the Yale shadow puzzle, due to Roy Sorensen, based on the actual process theory of causation, and argue that it does not work in the case of a new version of the puzzle, which I call ‘the Bilkent shadow puzzle’. I offer a picture of the ontology of shadows which, together with an alternative view of causation, constitutes the basis for a new solution that uniformly solves both puzzles.