On Wed, Dec 19, 2018 at 4:18 PM Bruce Kellett <[email protected]> wrote:
> From: Jason Resch <[email protected]> > > On Wed, Dec 19, 2018 at 6:00 AM Bruce Kellett <[email protected]> > wrote: > >> >> Of course they differ: in one case you have a purely local concept of the >> present; in the other case you require some global notion of a "present", >> which cannot even be uniquely defined. >> >> > What exists? > > A: *naive presentism*: only a 3-dimensional space evolving in time (some > particular "slice" of spacetime exists, which constantly changes) > B: *local-presents*: Events, each in their position in space time, each > in their own present time > C: *block-time*: Events, each in their position in space time > > We both agree relativity rules out A. But I struggle to see the > difference between B and C (ontologically speaking), unless you are > proposing the view that the only thing that exists is a single event (I > don't think you are though). > > > There are of the order of 10^80 protons in the visible universe. One does > not confuse this fact by imagining that there is only one proton...... > > I think your problem with the ontology of the strictly local "present" is > that you still have in you mind some notion of an absolute, external time, > in which all these "presents" exist. Your description of "block time" in C > above makes precisely this mistake. > I am only asking what exists in your theory, given you reject the notion of the present as a global space-like hyperplane. Jason -- You received this message because you are subscribed to the Google Groups "Everything List" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at https://groups.google.com/group/everything-list. For more options, visit https://groups.google.com/d/optout.
