Can you make sense of this? "In some possible world, Bert is not Bert"? — Banno
Crucially, that's not what I said! I said that
I might not be bert1. This is exactly what is at stake, whether the words 'I' and 'bert1' have the same meaning, or perhaps referent, or not, and under what circumstances. And whether this is a grammatical or metaphysical issue.
Metaphysically, I take the view that
consciousness (bear with me with the 'c' word, this is relevant) is not complex. There are not different kinds of it. By contrast, the content of consciousness, namely what we are aware of, admits of limitless complexity and variety. In my metaphysics there is a duality between the observer and the observed; they are not the same thing. The observer is not an object in the world. I know you don't agree with this and I'm not trying to argue for it here. The point is that there is a metaphysical assumption behind my language use, such that the referent of 'I' and 'bert1' can be separated under some circumstances. For the purpose of this thread, a question like 'Why am I bert1?' can be made sense of by separating the referents of 'I' and 'bert1', such that I do not gibber. By 'I' I mean consciousness (in this context) and by 'bert1' I mean a certain set of content to that consciousness.
However, if you take a different metaphysical view, in which there is no separation between observer and observed, and no metaphysical difference between the referent of 'I' (when bert1 is speaking) and 'bert1', then indeed, any such questions such as 'Why am I bert1?' is rendered vacuous, based on a grammatical muddle. And I take it this is your view.
Do you agree, then, that there is a metaphysical element to this issue, not just a grammatical one?
Perhaps you think that the grammatical error
causes the metaphysical error?
(I don't want to persuade you you are wrong about the metaphysics, just that you are wrong to say this is a grammatical problem rather than a metaphysical one).
That is not to say that people who ask such questions are never muddled about grammar, they might be I suppose, but I think it far more likely that they simply have different metaphysical assumptions that make sense of their utterances.