On 22 Apr 2017, at 23:58, Stathis Papaioannou wrote:
On Sun, 23 Apr 2017 at 12:52 am, Telmo Menezes
<[email protected]> wrote:
On Sat, Apr 22, 2017 at 6:12 AM, Brent Meeker <[email protected]>
wrote:
>
>
> On 4/21/2017 3:42 AM, Telmo Menezes wrote:
>>
>> John is accusing you of naive dualism. He says that you claim that
>> there is some mysterious substance (he finally called it a "soul")
>> that is not copied in your thought experiment. What I claim is
this:
>> under physicalist assumptions, everything was copied. The problem
is
>> that physicalism leads to a contradiction,
>
>
> I don't agree that it leads to a contradiction. Can spell out
what that
> contradiction is?
Shortly (sorry for any lack of rigour):
If you assume computationalism, the computation that is currently
supporting your mind state can be repeated in time and space. Maybe
your current computation happens in the original planet Earth but also
in a Universal Dovetailer running on a Jupiter-sized computer in a
far-away galaxy. Given a multiverse, it seems reasonable to assume
that these repetitions are bound to happen (also with the simulation
argument, etc.). And yet our mind states are experienced as unique. It
follows that, given computationalism, mind cannot be spatially or
temporally situated, thus cannot be physical.
It is possible - addressing just this argument - that while mind is
not localised it still needs to be implemented in a physical
substrate.
Telmo was a bit short. The full proof relies on the fact that the
computations are realized in arithmetic, and that a universal machine
cannot use primary matter in a magical (non Turing emulable, and non
FPI-recoverable) to select computations.
Of course, a materialist could still say "yes" to the doctor, and,
when surviving, thanks God for its magical abilities, but this is no
more computationalism, but computationalism + magic. It is not
scientifically valid, as it uses God to prevent searching a solution,
which is the bad use of God, usually based on bad faith.
Bruno
In this case we avoid dualism by reverting things: ok, so it is time
and space that are generated by mind.
I think.
Telmo.
--
Stathis Papaioannou
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