DrewDad wrote:It's the front of a wave, not a point. Sheesh.
That'd be Possiblism rather than Presentism - you're saying the past exists, right? the past is the rest of the wave...
Cyracuz, another problem for presentism:
You would say that only temporally present things exist, right? So Charles Darwin does not exist, but Steven Hawkings does. (Correct me if this isn't what you believe). What do we mean by 'exist' here? Surely we don't mean exist in the present tense, "exists now," because then all we'd be sayign is, "what exists now, is now." Also, we can't mean by 'exist,' "has existed, does exists, or will exist," because then the past and future would be 'now.'
So we must mean 'exist' in a tenseless sense. Things that are temporally present exist tenselessly, just as the number 2 exists tenselessly. So it is tenselessly true that I exist now, but say in a hundred years I am dead, it will then be tenselessly true that I do not exist. It can't be true that I exist and do not exist - and we can't just say that I'm existing at one time and not at another, because we are using a tenseless form of the term 'exist.'
That's a tricky problem that arises with Presentism, because Presentists believe that only now-things exist, and anything not now does not exist.