The early demos from ctrl labs (aquired by facebook) were VERY interesting. They put a sensor band around the forearm and used machine learning to interpret th

The early demos from ctrl labs (aquired by facebook) were VERY interesting. They put a sensor band around the forearm and used machine learning to interpret the electrical signals the brain was sending. They were able to interpret intent to move before actual movement. they apparently had a perfect keyboard, but you didn't have to actually move your fingers. What was interesting is that one of the guys working there had figured out how to have a third arm. can't find the article. this is close: https://www.theverge.com/2018/6/6/17433516/ctrl-labs-brain-computer-interface-armband-hands-on-preview https://www.theverge.com/2018/6/6/17433516/ctrl-labs-brain-c...