In 20 17, they had a paper in plus vi biology about how these electrodes on the scalp could read brain waves and decide if someone was thinking the answer yes or no. The machine records the blood flow during that solt and calculates how the blood flow changes duringyes andnos. They tested it in force objects, and they claimed that it was pretty success beer bomber and chowdery actually claimed to have been able to communicate with a fully paralyzed person before. You know, h has been controversial and his body bugwad thowdery.