jamesp81 wrote...
A computer system can be modeled as a state transition diagram. It's a simple diagram that consists of simple bubbles, each representing a possible state. The correct input may move you from one state to another, or do nothing at all. It's a very simple model used to explain basic concepts to students in college. I'm sure you can google one up if you'd like to see it.
A computer system, no matter how complex, can be described by such a diagram. These are not drawn for complex systems, as such a diagram describing Windows running on intel 64-bit architecture would be so large that I doubt there's enough paper in the country to draw it. However, it is technically possible to create such a diagram.
And here's the thing; a computer system described by said diagram will never, never, ever, be in a state not described and documented in that diagram. Ever. When a computer displays a web page it doesn't do it because it decides to do what it was asked, it does it because billions of ones and zeroes line up in the right way to make it happen. The page is displayed not due to choice; it is displayed because the system physically doesn't have an option to do otherwise. People like to compare computers to a human brain but it's just not a good comparison. A computer compares more favorably to, say a winch or pully. The winch pulls things because physics leaves it no option; you apply the correct force and things happen. With a computer, you apply the right set of zeroes and ones, and something happens.
Assuming free will exists (and we may as well assume it, since proving it is quite literally as impossible as proving any given collection of numbers is truly random), a computer system clearly does not demonstrate. A complex, well programmed computer can mimic it, but not possess it.
For the Geth to be sentient, they require that something more that a human being has.
If we are attributing moral significance to the Geth on the basis of free will, then I suppose we do have to enter into this discussion..
Why do we have to assume free will exists? Conceivably you could have a much much more complex computer system, which was programed to react to external stimuli and accept certain stimuli as new commands in its program structure, but commands which would be entered into (and subtley alter) an immensely complex command system. Given enough time, and very limited access to that initial command system, then we would be stood observing a system we know too little about to predict its actions, or its internal commands (or whatever term is applicable).. without the forethought of knowing the system we would conclude that it was acting randomly or freely. How would that structure be different from the human mind (which has an initial command structure which also dictates how it develops, and is formed in such a way as to take in external stimuli as commands)?
As our brains are too complex for us to understand (or to potentially ever understand) , as is the shared Geth conscious (again, potentially too complex to ever understand), we interpret the actions of others as free will. Our own subjective experience supports the illusion.
That is not to say that we should give up on the idea of free will; as determinism is a law of nature human actions can do nothing but live in concordance with it (aka we cannot say 'seeing as though free will is an illusion, we should do x, y and z)
It is a useful illusion however, in so ar as it supports a view of life we enjoy. However when it is used to decide status, then we should recognise it as what it is.. an illusion