MTI seems too strong. It denies identity to objects that we think of as persisting through time. But that leaves us with some problems: a. What do we replace it with? Spatio-temporal continuity (the intuition behind our alternative (ii), above) is the most promising (and common) suggestion. A persisting object must trace a continuous path through space-time. And tracing a continuous path is compatible with a change of parts, so long as the change is gradual and the form or shape of the object is preserved through the changes of its component materials. So it appears that we can replace MTI with the theory of spatio-temporal continuity (STC). b. But STC is also problematic. For it is easy to imagine cases in which our intuitions tell us that we have numerical identity without spatio-temporal continuity. Consider that an object can be disassembled and then reassembled. (Think of a bicycle that is taken apart. The parts are then placed in a number of separate boxes, which are then shipped,
This is the end of the preview.
access the rest of the document.