On Tue, Dec 11, 2018 at 1:20 PM Brent Meeker <[email protected]> wrote:

>
>
> On 12/11/2018 11:06 AM, Jason Resch wrote:
>
>
>
> On Tue, Dec 11, 2018 at 12:53 PM Philip Thrift <[email protected]>
> wrote:
>
>>
>>
>> On Tuesday, December 11, 2018 at 12:45:13 PM UTC-6, Jason wrote:
>>>
>>>
>>>
>>> On Tue, Dec 11, 2018 at 11:29 AM Brent Meeker <[email protected]>
>>> wrote:
>>>
>>>>
>>>>
>>>> On 12/11/2018 12:31 AM, Philip Thrift wrote:
>>>>
>>>>
>>>>
>>>> On Monday, December 10, 2018 at 7:05:17 PM UTC-6, Jason wrote:
>>>>>
>>>>>
>>>>>
>>>>> No one is refuting the existence of matter, only the idea that matter
>>>>> is primary.  That is, that matter is not derivative from something more
>>>>> fundamental.
>>>>>
>>>>> Jason
>>>>>
>>>>
>>>>
>>>> I can understand an (immaterial) computationalism (e.g. *The universal
>>>> numbers. From Biology to Physics.* Marchal B [
>>>> https://www.ncbi.nlm.nih.gov/pubmed/26140993 ]) as providing a purely
>>>> informational basis for (thinking of) matter and consciousness, but then
>>>> why would *actual matter* need to come into existence at all? Actual
>>>> matter itself would seem to be superfluous.
>>>>
>>>> If actual matter is not needed for experientiality (consciousness), and
>>>> actual matter does no exist at all, then we live in a type of simulation of
>>>> pure numericality. There would be no reason for actual matter to come into
>>>> existence.
>>>>
>>>>
>>>> If it feels like matter and it looks like matter and obeys the
>>>> equations of matter how is it not "actual" matter?  Bruno's idea is that
>>>> consciousness of matter and it's effects are all we can know about matter.
>>>> So if the "simulation" that is simulating us, also simulates those
>>>> conscious thoughts about matter then that's a "actual" as anything gets.
>>>> Remember Bruno is a theologian so all this "simulation" is in the mind of
>>>> God=arithmetic; and arithmetic/God is the ur-stuff.
>>>>
>>>
>>> It's not just Bruno who reached this conclusion. from Markus Muller's
>>> paper:
>>>
>>> In particular, her observations do not fundamentally supervene on this
>>>> “physical universe”; it is merely a useful tool to predict her future
>>>> observations. Nonetheless, this universe will seem perfectly real to her,
>>>> since its state is strongly correlated with her experiences. If the measure
>>>> µ that is computed within her computational universe assigns probability
>>>> close to one to the experience of hitting her head against a brick, then
>>>> the corresponding experience of pain will probably render all abstract
>>>> insights into the non-fundamental nature of that brick irrelevant.
>>>
>>>
>>> Jason
>>>
>>
>>
>>
>>
>>
>> What is the computer that running "her computational universe"?
>>
>>
> The very same that powers the equations that bring life to our universe as
> you see it evolve.
>
>
>> What is its power supply?
>>
>>
> Power is only required to erase information, and that is only a concept of
> the physical laws of this universe.  Even the laws of our universe permit
> the creation of computers which require no power to run.
>
> See the bit about reversible computing:
> https://en.wikipedia.org/wiki/Landauer%27s_principle  (computations that
> are reversible require no energy).
>
>
> And they produce no results since they run both ways.  They are not even
> computations in the CT sense.
>

I am not sure about that. There is the concept of reversible Turing
machines:
https://en.wikipedia.org/wiki/Reversible_computing#Logical_reversibility

Jason

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