The brain researchers at the Free University of Berlin call their project “Brain Driver” and are demonstrating just how free thoughts can be—although their contraption does still look rather banal: a person wearing a sort of cap directs a car with thoughts. Sixteen sensors, affixed to a helmet that has the distinct air of science fiction of yesteryear, measure the brain waves of the test subject. The subject thinks “right,” “left,” “brake,” or “accelerate”—and the car…
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