They exist if there is a consistent description of them. Even within
conventional physics there is room for that, as discussed recently on
this list. In the MWI or in eternal inflation models, everything that
is not strictly forbidden by the conservation laws will happen.
Flying pink elephants can e.g. exist on planets with an extemely dense
atmosphere, there was a NGC documentary a few years ago about this
topic, it was suggested that you could have flying whales on such
planets.
Saibal
Citeren Bruno Marchal <[email protected]>:
On 08 Jun 2013, at 07:41, Stephen Paul King wrote:
" If you believe that a flying pink elephant is pink, must you
believe a flying pink elephant exists?"
Yes, at least for the chap that holds the belief and the belief is
true (ala Bruno).
Right, but like I said, I believe also that flying pink elephant are
not pink. And so I can easily prove that flying pink elephant does
not exist, as far as I am consistent.
Bruno
On Fri, Jun 7, 2013 at 11:15 PM, meekerdb <[email protected]> wrote:
On 6/7/2013 4:00 PM, Stephen Paul King wrote:
Yes, if there was a text of this it would be nice... I found this:
http://plato.stanford.edu/entries/fictionalism-mathematics/
A fictionalist account holds that some things are fictional, i.e.
don't exist even though their complete description is self-
consistent. Everythingists apparently reject this idea. Platonists
seem to equate 'true' with 'exists'. If you believe 17 is prime
you must believe 17 exists. I think this is wrong. If you believe
that a flying pink elephant is pink, must you believe a flying pink
elephant exists?
Brent
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