  Intrinsic changes are changes like learning or expanding, which (roughly) occur entirely within the changing item — which could occur if the universe ended at the item's “skin.” Putting this more carefully, an item x has a property F intrinsically just if whether x is F is settled entirely by the states of x and x's proper parts (if any), and a change is intrinsic just if its occurring consists entirely in a thing's gaining or losing a property had intrinsically. Changes which are not intrinsic are extrinsic. All changes in relations to other things are extrinsic. For instance, if a dog moves to my left, I become a man with a dog on his left. This does not take place wholly within me; whether it occurs is not settled by my and my parts' states. It also involves the dog, who exists outside me.