“Electrodes can be attached to your skull and algorithms can identify the words you think with 90% percent accuracy. You see, your brain produces certain wavelengths when you think certain words so ... surprise. The current tech is a bit clunky, since it requires that you be thinking actual words, and they still need wires connected to your skull. But it’s a start. What is a unnerving is how optimistic some of these articles sound, how happy the authors are”