On 09 Jun 2013, at 02:37, [email protected] wrote:
But if such a real physical pink elephant can't exist, that means
that it is not a logically consistent concept to begin with.
Assuming that everything consistent exist, but that depends on other
assumptions. In arithmetic, it is consistent that proof of falsity
exists, but they do not exist in the standard model of the axioms (in
which we work).
If one starts from a logically consistent system, then one can
always find a physical system whose equations of motion realize it,
it will then exist in a generic multiverse scenario.
I doubt this. As I said Bf is consistent in PA, but it can be shown it
will be an infinite object, and it is not obviously realizable in a
physical reality.
Bruno
Saibal
Citeren meekerdb <[email protected]>:
On 6/8/2013 12:03 PM, John Mikes wrote:
You are mixing conventional physicalist-materialist apples with
imaginary oranges. Anything 'could be'.
That's my point. Anything 'could be' if the only constraint is
logical consistency (not self contradictory). But in the sense of
'be' that requires a universe and observers there appear to be
other, nomological constraints. So there could be an animal that
looks superficially like and elephant and lives on a planet who's
atmosphere is as dense as water and is pink. But it couldn't also
have the same DNA and metabolic system as and elephant. So it
would only 'be a flying pink elephant' because we use the words to
denote a certain similarity in appearance.
Brent
Question: would such "anything" be topic for this physicalist-
based conventional EVERYTHING List?
Q-2: are OUR colors defined for different physical circumstances
as well? BTW - IMO flying is not restricted to a conventionally
called 'gaseous' medium, so 'swimming' can be considered an
alternate for flying. - PINK Whales? <G>
Rem: of course 'they' all exist - if not otherwise: in our mind.
JM
On Sat, Jun 8, 2013 at 12:04 PM, meekerdb <[email protected] <mailto:[email protected]
>> wrote:
On 6/8/2013 5:23 AM, [email protected] <mailto:[email protected]>
wrote:
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.
Could you identify them as elephants and whales by their DNA?
Could the elephants
be pink?
Brent
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