Peter Gamma from www.petergamma.org has studied «OpenBCI made in China» for several years. But was OpenBCI made in China not been a pipe detonator as PiEEG? Peter Gamma currently still uses no EEG device to practice meditation, altough he has written 1150 post about EEG devices on www.petergamma.org: https://petergamma.org/category/eeg-devices He only uses Garmin watches for …