The determinism kind of removes the "free" from free will. Determinism means that, if someone else knows your internal state, they can predict, or worse, manipu

The determinism kind of removes the "free" from free will. Determinism means that, if someone else knows your internal state, they can predict, or worse, manipulate your free will. People are naturally extremely personal and possessive about their free will, and these experiments are "stealing" it away. That's why the knee jerk reaction to these experiments is always extremely negative.