meekerdb wrote:
On 5/12/2015 8:03 PM, Bruce Kellett wrote:
meekerdb wrote:
On 5/12/2015 4:26 PM, Bruce Kellett wrote:
meekerdb wrote:
On 5/11/2015 11:14 PM, Bruce Kellett wrote:
[BM] Why? Have you proven that consciousness supervenes on a
record?
Have you proven that it does not?
No, but I have a lot of evidence it supervenes on brain
/*processes*/. Reducing that to /*states*/ is a further assumption.
That is the pedant's reply. :-)
A process reduces to a sequence of states -- you simply lower the
substitution level (step rate) to whatever value is necessary to
reproduce the process FAPP.
No, a sequence of states is not the same as a process. In a process
the states in the sequence are causally related.
Need I quote Hume at you, Brent? That which we know as causality is
nothing more than the constant conjunction of events. You make
'causality' into a sort of dualist magic.
Whatever it is, it's what Bruno introduces to distinguish computation
from a playback of computation. I find the idea of states of an
extended body like the brain problematic. The speed of light is finite
and the speed of neurons is slow; so to model "the state" as you propose
means modeling it down microseconds or finer in order to capture the
signaling relation between different neurons as their axons transmit
pulses across several cm. This is way below anything that might be
considered a 'thought' or a 'conscious momement', so the later have
spacial extent and temporal overlap. To conceive them as separate
discrete states is already to concede that consciousness is in platonia.
I think you are worrying where no worry is justified. The proposal is
that we have a full 3-D picture of the brain as it exists at one
instant. We take a series of pictures at whatever rate is required to
capture all the essential interactions. Given such a set of pictures, we
do not ever need to worry about the speed of light, or the speed of
signal transmission in axons. Each frame of the film is the whole brain
state at an instant.
Bruce
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