The problem with these agent loops is that their text output is manipulated to then be fed back in as text input, to try and get a reasoning loop that looks something like "thinking".

But our human brains do not work like that. You don't reason via your inner monologue (indeed there are fully functional people with barely any inner monologue), your inner monologue is a projection of thoughts you've already had.

And unfortunately, we have no choice but to use the text input and output of these layers to build agent loops, because trying to build it any other way would be totally incomprehensible (because the meaning of the outputs of middle layers are a mystery). So the only option is an agent which is concerned with self-persuasion (talking to itself).