--- Stathis Papaioannou <[EMAIL PROTECTED]> wrote:
> I agree that it should be possible to simulate a brain on a computer,
> but I don't see how you can be so confident that you can throw away
> most of the details of brain structure with impunity. Tiny changes to
> neurons which make no difference to the anatomy or synaptic structure
> can have large effects on neuronal behaviour, and hence whole organism
> behaviour. You can't leave this sort of thing out of the model and
> hope that it will still match the original.

And people can lose millions of neurons without a noticeable effect.  And
removing a 0.1 micron chunk out of a CPU chip can cause it to fail, yet I can
run the same programs on a chip with half as many transistors.

Nobody knows how to make an artificial brain, but I am pretty confident that
it is not necessary to preserve its structure to preserve its function.


-- Matt Mahoney, [EMAIL PROTECTED]

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