[throw1234651234]

"I mean, there are papers out there about methods capable of extracting complete words from brainwaves"

As far as I know, this is complete fiction right now. Same with images.

There are people currently working with AI interpreting brain signals to be reproducible, to say, move left and right in a game. It's far from working on "left" / "right", let alone anything more sophisticated than that.

[unishark]

There are researchers using functional MRI (and machine learning presumably) to try and detect lies. There may even be some trying to use it commercially.

I imagine it's about as reproducible as most fmri research, as in not.