Ok, so we speak the same language, and we live in the same world, but there is no possibility of the concept in my head being understood by you. How do we communicate under those conditions? Can you give an example?
There needs to be some sharing of concepts, some common understanding, for any form of communication.
hile exercise is pointless. So every instance of communication involves one person sharing concepts with another person.
then this boils down to what "share a concept" means.
We share concepts in the very loose sense that I want my concepts to be similar to your concepts. And I can agree that if my concept is similar enough (in some sense) then they "shared".
Precisely so. Without that similarity we aren't communicating.
So, if we need similarity, then an account where words are individual entities is missing something. Because it is on the similarities, and only through the similarities, that communication occurs.
If Adam writes in his Book, which is read by Christie, who tells it to Davan, who sends it as an Electric telegraph signal to Felicity, then we have a message being sent from A-F, from Adam to Felicity. But the word's form, as a neural signal, as a series of words, as a telegraph signal, is largely irrelevant. What matters is the meaning being transmitted. And that meaning does not have a consistent form, it is abstraction that is shared by all the participants.