It's a delusion — RogueAI
Agreed but the question, to me, is
which is the delusion? Descartes' cogito argument or Cotard "delusion"? Don't be fooled by the word "delusion" in Cotard delusion - that's not as cut-and-dried as it's made out to be for it assumes Descartes is right and that's precisely what needs to be proved.
We can quibble about what "I" means — RogueAI
This is the nub of the issue. Let's discuss the Descartes' argument and Cotard's argument and may be the truth will emerge from it.
Descartes' cogito argument (argument D)
1. Thinking is occurring
2. There's something that's thinking
3. I am that something that's thinking
Ergo,
4. I exist (as something that's thinking)
Cotard delusion argument (argument C)
1. Thinking is occurring
2. There's something that's thinking
3. I am
not that something that's thinking
Ergo,
4. I don't exist (as something that's thinking)
Both arguments have two identical premises (1 & 2) but differ with respect to premise 3 and, quite obviously, the conclusion.
As is evident, premise 3 in argument D is being challenged by premise 3 in argument C.
Perhaps premise 3 in argument C can be explained in terms of an incongruence between the patient's idea of who fae is (the patient's I) and the "something that's thinking." Cotard delusion has been reported to occur after severe trauma (major vehicular accidents for example) and such patients may argue in the following way.
1. Nobody could've survived the accident I was in
2. If nobody could've survived the accident I was in then I'm dead
Ergo,
3. I'm dead
4. If I' m dead then I don't exist
Ergo,
5. I don't exist
Could Descartes' cogito argument help cure Cotard delusion? Suppose I offer Descartes' cogito argument to someone suffering from Cotard delusion. If the delusion is deeply entrenched, the patient will not accept the argument and the only way that's possible is if fae believes premise 3 in argument C which is. 3. I am
not that something that's thinking, and we've circled back to where we began, is the I = that something that's thinking?
At this juncture, it seems we need to discuss the notion of "something that's thinking" (see premises 2, 3 in argument C and D).
Everyone is "something that's thinking" because everyone thinks. Ergo, if I = something that's thinking, you are me, I'm you, you're Descartes, Descartes is me, so and so forth until I = everyone.
Argument E
1. I = Something that's thinking
Ergo,
2. I = Everyone
Ergo,
3. I = You
4. I'm thinking about Descartes
5. You're thinking about the woman in the red dress (homage to The Matrix) [you're not thinking about Descartes]
6. If I'm thinking about Descartes and you're not thinking about Descartes (the woman in the red dress) and I = you then, I'm/you're thinking about Descartes and I'm/you're not thinking about Descartes
7. I'm/you're thinking about Descartes and I'm/you're not thinking about Descartes [contradiction]
So,
8. I = You is false
Therefore,
9. I = Everyone is also false
Hence,
10. I = Something that's thinking too is false
Looks like, from line 10 just above, those who "suffer" from Cotard delusion are spot on (see premise 3 in argument C)
What next?
If you ask me, the only option we have to identify ourselves with the mind is to base it on
thought content. In argument E, we noticed that a single individual can't think about, say, X and also not think about X. So, if I were to claim that there are two thoughts occurring at the same time viz. a thought about Descartes and a thought about a woman in a red dress (not Descartes), I could immediately infer on pain of a contradiction that there are at least
two persons (I's) involved.
Taking this a step further, let's do a thought experiment. Imagine a universe U with the following setup:
1. You don't know how many persons are there in this universe.
2. The only activity possible in this universe is thinking.
3. There are only two thoughts available to wit, A and B.
4. The only information given to you is/are the thought(s) taking place in this universe.
Imagine now that you're told that at time t1, the thoughts in U are A and B (not A). You can immediately infer, on pain of contradiction, that there are at least two persons in U - one is thinking A and the other is thinking B (not A).
At another time t2, you're informed that the thought in U is A. This is insufficient to infer anything about the number of people in U: it could be that everyone (more than one) in U is thinking the same thing (A) or it could be that there's only
one person thinking A.
At a different time t3, you discover that the thoughts in U are, again, A and B. From this, as before, you conclude there are at least two persons in U - one having thought A and the other thought B.
There are now two distinct
sequence of thoughts:
Thought sequence P
1.A at time t1, A at time t2, B at time t3 [AAB]
2. B at time t1, A at time t2, A at time t3[BAA]
or
Thought sequence Q
1. A at time t1, A at time t2, A at time t3 [AAA]
2. B at time t1, A at time t2, B qt time t3 [BAB]
The
sequence of thoughts is critical to the identity of a person (the "I" in Descartes' cogito argument) in U because uniqueness, as you can see above, is to be found in the
sequence of thoughts [AAB, BAA, AAA, BAB, all unique]. What we can infer then is, either as per thought sequence P, there are at least two persons viz. AAB and BAA or as per thought sequence Q, there are, again, at least two persons viz. AAA and BAB. In short, the "I" in Descartes' cogito argument is a label for a one particular permutation (order matters) of all possible
sequences of thoughts.
Firstly, such a conception for the "I" in the cogito argument seems to be a big disappointment. How comforting it is to believe the "I" = "something that thinks" for to say "I exist" then is more meaningful, more tangible, more uplifting. As
just or nothing more than a
sequence of thoughts, the "I" loses its luster, becomes dull, unappealing and uninteresting.
Secondly, I wish to discuss the matter of how it's possible for
two persons to experience the exact same
sequence of thoughts. There's no reason why you wouldn't find out that in universe U, the thoughts were: at time t1, A; at time t2, B; and at time t3, A. The
sequence of thoughts would be ABA. Given this data, you wouldn't know if there was only one person thinking ABA or a gazillion persons thinking ABA since they can be duplicated precisely. In other words, because no
sequence of thoughts is going to be exclusive to
one person, a
sequence of thoughts doesn't really provide you with a foolproof method of identifying a particular person in universe U. This means, in the simplest of terms, a
sequence of thoughts also can't be the necessary foundation for Descartes' "I".
In summary, we have only two options for a referent for Descartes' "I" viz. 1. "something that's thinking" or 2. a
sequence of thoughts and both don't make the cut so to speak. Ergo, in full agreement with those with Cotard "delusion",
I don't exist. :chin: :chin: :chin: