On Jul 25, 8:32 am, Stathis Papaioannou <stath...@gmail.com> wrote:

> The replacement neurons are integrated so that they interact with the
> rest of the brain just as normal brain tissue would. An example is the
> one you came up with, neurons without their nucleus, which would
> function normally at least for a few minutes.

If they can only function for a few minutes, then that function may
not be 'normal' to anything except us as distantly removed observers.

> If any of those things happened you would say, "Hey, things look
> strange!" But you can't say this, because the normal brain tissue,
> including the neurons that enable speech, receive normal input from
> the replacement neurons. So either everything looks just the same, or
> everything looks different but you can't be aware of any difference.
> (Please don't say that they *don't* receive normal input, because that
> is the entire point of the thought experiment establishing
> functionalism!)

They may receive some normal input, but there may be a lot more input
which we have no way to understand from our perceptual distance which
gets amputated.

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