Is there any sense to localize thought in space? Peirce, Wittgenstein and signs

Peirce and Wittgenstein have shown that to localize mind and thought in a space is a nonsense, and that there are benefits in externalism, albeit methodological. Peirce externalizes mind and free it from human brain, rethinking a new notion of sign and thought: thinking is to operate with signs, internal or external. Then, using the same definition of thinking, Wittgenstein tries to destroy the structure internal/external as a grammatical one, and the myth of interiority. His methodological externalism free us from this myth according which: “our thoughts are proceeding in the interiority of a consciousness where they are recluse and by opposition of which any physical reclusion is openness”.