In 1000 years perhaps we will understand how the mind works and scientists will take out this glass brain and read it.
They revive a knight who attacks them and gets killed, a hippie who they kill off after questioning, and finally a future human with psychic powers who steals the revival device.
By no means perfect but it's surprisingly close. Granted I think that interpretation is from looking at stuff like electrical activation and not just brain structure itself and the fossil is the latter.
https://www.vox.com/future-perfect/2023/5/4/23708162/neurote...
But bring to machine interfaces are an entirely different thing altogether and they test it with controls and training unknown examples and then proceeding to prediction based off of training.