  Priest wishes instead to have an intrinsic account of change, in which it is a matter of the features of the object solely at the instant whether it is changing at the instant. He offers three arguments against the extrinsic account. First there is the “abutment” argument (p. 203). Taking the usual view of time as a continuously distributed collection of point-instants, in any change there must be an interval throughout which \(p\) holds abutting an interval throughout which \(\neg p\) holds. It makes no difference whether there is a last instant for \(p\) and no first instant for \(\neg p\), or no last instant for \(p\) and a first instant for \(\neg p\); either way there is no room for a time at which the system is changing. For example, if we said that the change was at the boundary point, then there would be nothing about that point to distinguish it from the situation where there was no change at all because the abutting intervals had the same proposition holding throughout each. Hence says Priest there is no change at all in the cinematic view: for change there would have to be a time when change was occurring, and that is absent in this case.