On 27 Aug 2009, at 15:04, Stathis Papaioannou wrote:

>
> 2009/8/27 Bruno Marchal <marc...@ulb.ac.be>:
>
>> You are right. A simpler example is a dreamer and a rock, and the
>> whole universe. They have locally the same input and output: none!   
>> So
>> they are functionally identical, yet very different from the first
>> person perspective. This is why in comp I make explicit the existence
>> of a level of substitution. It is the only difference with
>> functionalism which is usually vague on that point. It is a key  
>> point.
>
> The dreamer is not functionally identical to the rock because he is
> dreaming and the rock isn't (I'll avoid starting up another rocks are
> conscious discussion). If the dreamer could talk, he would tell you
> that something is going on, while the rock would not.

I was assuming a non talking dreamer, of course.



> It isn't really
> fair to say that the outputs are the same simply because the lines of
> communication are down, or because eg. you are deliberately trying to
> fool the external observer into thinking everything is the same.


My point is just that functionalism does not really make sense, unless  
a level of substitution is assumed.

- Bruno Marchal


http://iridia.ulb.ac.be/~marchal/




--~--~---------~--~----~------------~-------~--~----~
You received this message because you are subscribed to the Google Groups 
"Everything List" group.
To post to this group, send email to everything-list@googlegroups.com
To unsubscribe from this group, send email to 
everything-list+unsubscr...@googlegroups.com
For more options, visit this group at 
http://groups.google.com/group/everything-list?hl=en
-~----------~----~----~----~------~----~------~--~---

Reply via email to