DrNoGods wrote: ↑Sun Jun 12, 2022 9:33 pm
[
Replying to Inquirer in post #109]
You are an electronics engineer so should appreciate better than most, what I'm talking about here.
Thanks for the new title, but I'm a spectroscopist by trade although I have learned quite a bit of electronics over the years out of a need to do so.
Take a transistor, say a simple FET or op-amp. Well the characteristic curves for that are what they are, you apply a gate voltage and you get a resulting drain/source current, there are as you know better than I perhaps, documented characteristic curves for this.
I do know how MOSFETs and bipolar junction transistors work (and opamps which are built from transistors). A crude analogy to my point that the whole can be far more capable and and with new functions compared to its parts would in fact be an opamp. The individual transistors and other components that make up an opamp cannot individually carry out the basic function of an opamp (ie. force the output to whatever voltage is necessary to make the voltages at the + and - inputs equal), but the complete opamp can perform this function (or rail trying). The opamp can perform a function that its constituent components cannot.
If we build a circuit out of ten, a hundred or a million of them, then the output will be a computable function of the input, the system does not suddenly acquire some magic ability to decide for itself what the output will be irrespective of the input.
Right, but that's not analogous to consciousness being an emergent property of a working brain. A typical human brain contains something like 90 billion neurons and 10-50 times that many glial cells:
https://www.pnas.org/doi/10.1073/pnas.1201895109
And neurons are not simple 2-state transistors (a single synapse may act more like that):
https://www.extremetech.com/extreme/170 ... e-learning
This massively parallel architecture and the ability of neurons to change the "strength" of intreactions based on repetition of signals make the brain a
far more capable "computer" than anything we've ever built yet as a machine. We don't understand it well enough to put boundaries on its capabilities and say that something like consciousness is not possible as an emergent property. We know that humans are conscious beings (as are many other animals), while plants are not ... and, not coincidently, plants don't have brains. The human brain is not deterministic ... yet anyway.
Oh I understand the reasoning, it's common and well established, has been actually since the dawn of the machine age. The thinking is that because human brains contain a huge number of components and humans possess consciousness and apparent free will, then these are therefore "emergent" properties (or bulk properties) of the brain, but it is just a hypothesis based on a presumed correlation between complexity and capability.
The fact is though that if this is true then we do not have nor can ever have free will, because biological cells and neurons are deterministic, implement computable functions and by definition free will is incompatible with determinism. Non determinism cannot "emerge" from determinism. Unpredictability
can emerge but that is a very different thing altogether as I said, a dice is unpredictable but does not have free will, the weather is unpredictable but does not have free will.
If you insist that free will can exist then we must consider the possibility that any unpredictable system
might actually possess free will, and therefore the weather might choose what it does, but claiming the weather is a choice is no different to the scoffed at claims of the primitive tribes and the "Gods of the sky".
The argument is
unwinnable, if free will (non-determinism)
does emerge then it cannot be attributable to physical complexity alone because the components are deterministic. If the free will does not exist (only unpredictability) then there can be no right or wrong because these terms are meaningless without free will, a person cannot choose what to only what the laws of the system dictate what it should do.
So therefore in a purely scientific model of the universe free will does not exist, nature is deterministic and the actions of people can be classified as "good" or "bad" but these actions are inevitable consequences of determinism not choice.
If I let go of a ball it cannot choose to disobey physical law. If I apply a voltage to the gate of an FET it cannot choose to disobey physical law, if I switch on my radio it cannot choose to not act as a radio, to not obey the laws of physics.
For your argument (and this is not just your argument, a great many scientific people believe it) to have validity you'd need to prove that non-determinism exists (as opposed to unpredictability) but one cannot do that scientifically because science is based on cause -> effect - laws.
You cannot get a deterministic model - however complex - and generate non-determinism. To claim some effect is not due to cause, not due to laws, is to
cease being scientific - how can one prove that some event has absolutely no cause? we can suspect it, suggest it but never scientifically establish it, all we can establish is that we do not yet know the relationship between the cause and the effect
OR there is something else, something alien to us, that exists in the universe that constitutes free will - the Bible does speak of "spirit" so this might be what that means.