We say today a new video from www.openbci.com. It shows at the beginning a Greentek Gelfree S3 EEG cap: But are there any other demonstrations of this cap from www.openbci.com exept for those from Krisztián Hofstädter which we have discussed on www.petergamma.org? We are also happy to see Shirley Zhang from www.openbci.com again at 3:00 …