[ExI] Essential Upload Data
Ben
ben at zaiboc.net
Sun May 24 16:31:02 UTC 2020
On 24/05/2020 14:02, bill w wrote:
> Just to toss in my two cents, one with inflation,
> What do you think a consciousness is, if not the information that is
> being duplicated? Your language implies that someone's consciousness,
> their mind, is a separate thing from the duplicated information. ben
>
> Well, that's what I think. I think that consciousness is a dynamic
> process, which can show up on an EEG, whereas stored information is a
> static process (it used to be thought that a memory was a circuit
> continually running and if it stopped running the memory was lost).
> Consciousness is the part that accesses the static elements if desired
> (pulling long term memory into short term memory), along with
> processing sensory information. I also would not call consciousness
> the mind, since most of the mind is unconscious (and static unless
> called on (?), like accessing the definition of a word). bill w
I see a contradiction here. You're completely right to say that most of
a mind is unconscious (so we shouldn't really use the word
'consciousness' the way we are doing, fair enough), and that the dynamic
processes are, well, dynamic. But it's not correct to say that dynamic
processes can't be represented by static data. We do this all the time.
Again, the example of music comes to mind. So does John Conway's Game of
Life. The dynamic and self-interacting processes of the game can be
represented by a simple set of formulae, and additional data about a
starting state can exactly reproduce the dynamic progression of states
displayed by the game, when implemented by a suitable computing system.
I see no difference, in principle, between the Game of Life and a mind,
except for a large difference in complexity. We'll need a lot more
information to represent the patterns of dynamic interactions, and the
substrate to run them on will also be (potentially, depending on exactly
how things are implemented) more complex.
Basically, any information process, no matter how complex, or dynamic or
self-interactive, can be captured as static data then re-implemented later.
Let's say that it is true thata memory is a circuit continually running,
and if it stops running the memory is lost.
Let's say that the information in the circuit consists of a specific set
of spike trains in a loop. If you take the circuit in isolation, and
break it or stop it, the spike trains are lost and there's no way to
tell what they were, so restarting the circuit won't make the same
pattern reappear.
But how did the pattern get there in the first place? There must be some
configuration of neuronal connections, synaptic weights, and ionic
concentrations that produced it, looking at the wider brain connected to
the circuit. So if you can reproduce those, then stopping and restarting
the whole brain instead of just the circuit in isolation /will/ make the
same pattern reappear (in fact, our brains depend on this, otherwise
Marcel Proust would be an obscure nonentity). The same is true of any
dynamic process in the brain. Or anywhere, for that matter.
You can quote the 'butterfly effect', and say that it won't necessarily
be exactly the same pattern, but that doesn't matter, for two reasons.
First, it will be close enough. A small variation of a pattern in a
circuit won't constitute a totally different memory, as it's the result
of exactly the same inputs, and second, the butterfly effect won't even
be a factor in a brain, because it isn't something like a weather system
with many independent variables, it's a tightly-integrated system with
many attractors that similar patterns will settle into, just as the
cells in a tissue do, so that you can provide some of the cues, and the
cells themselves will provide the rest to settle into a 'mucle tissue'
pattern or a 'fibrous connective tissue' pattern, etc.
If this weren't true, then people under deep anaesthesia, or in any
state where their mental processes are interrupted, wouldn't be able to
resume them (or would display different personalities, be completely
different people upon resuscitation). All the processes that are
suspended, are stored in a static form which is then used to restart them.
We don't kill people by anaethetising them, or cooling their brains to 4
degrees centigrade, therefore dynamic processes can be stored as static
data.
On a separate note, if your mind is not information, and is not matter,
then what else could it be? The only things we have to work with (unless
you think magic is true) are space/time, matter/energy and information.
Information changing with time is still information (information which
changes, plus information about how it changes with time. Plus, if
needed, information about how the changes change, and so on, ad
infinitum), and we can easily demonstrate that suspending a process in
time does not irretreivably destroy it.
So, for cryonics to successfully preserve enough information to recreate
a mind, it looks like we'll need the connectome, and the synaptic
weights of all the crucial synapses for personality (what these are, we
don't currently know. I doubt that all of them in the whole brain will
be needed, but I may be wrong), plus possibly the concentrations of
certain key ions in certain key places might be desirable too, although
I suspect that omitting them would just cause a bit of vagueness, and an
upload becoming conscious would experience some confusion about what has
happened, much like waking from a dream. But if we have the technology
to record the weights in billions of synapses, I don't think adding
information about neuron hillock excitation states would be that hard,
so waking up as an upload could be a pretty seamless experience. You
die, then you wake up again, with your train of thought uninterrupted.
Would that be important? Personally, I'd be happy to forgo it, I think.
--
Ben Zaiboc
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