How does this inner voice compare to a real voice? Given that the scientists link that with auditory hallucinations, I'd expect that for at least some people i

How does this inner voice compare to a real voice? Given that the scientists link that with auditory hallucinations, I'd expect that for at least some people it's indistinguishable from a real voice (one of the earliest known example would be Socrates' daimonion). I hear a voice usually when I'm reading but it is of some kind of soundless intensity. I think different characters in books have slightly different voices but it's possible that my brain knows that different characters should have different voices and it just tricks me in believing it. I only have an inner voice for my thoughts when I try to articulate something. Otherwise I only think in concepts, structures and visualisations. This is also how I tackle programming or solving problems in general. I visualize the problem and build a "problem structure" and then try to make it collapse into a simpler structure.