 From an endurantist point of view, however, it is difficult even to say what temporal parts are supposed to be. Your temporal parts are parts of you which lie in the past or in the future. But endurantists agree that you have different spatial parts at different times: you exchange molecules with the environment, you grow new hairs or lose a tooth to decay. So, yes, some of your (former) parts lie in the past, and some of your (future) parts lie in the future, but that doesn’t mean that you’re somehow less than a whole person, right here and now. Why do perdurantists make such a big deal of the obvious fact that you have different parts at different times?