@lcamtuf honestly it reminds me of this study https://people.psych.ucsb.edu/gazzaniga/PDF/Language%20after%20section%20of%20the%20cerebral%20commissueres%20(1967).pdf
They seperate the sides of the brain and try to communicate with them individually.
> when an object was placed in the left hand (right hemisphere sensing it), the speaking left hemisphere fabricated a verbal explanation for why the patient was holding it
Later studies (60s so could be horseshit) worked with a theory of one side being more of an interpreter.