On 4/10/2013 2:08 PM, Terren Suydam wrote:
Hi Telmo,

Yes, those are good counter examples.

But I think to say "pain and pleasure are fine-tuned by evolution..." is a sleight of hand. Pain and pleasure are phenomenological primitives. If evolution created those primitives, how did it do that? By what mechanism?

Another way to think of this is to acknowledge that pain signals are mediated by special nerves in the nervous system. But what makes those nerves any different from a nerve that carries information about gentle pressure? You may be able to point to different neuroreceptors used, but then that shifts the question to why different neuroreceptors should result in different characters of experience.

You have to ground the interpretation in behavior and its relation to evolutionary advantage. People who put their hand in the fire withdraw it quickly and exclaim to warn others. People that don't suffer reproductive disadvantage.


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