Rob ter Horst & Ildar Rakhmatulin – clear signs that products have reached the end of the line?

The scientist Rob ter Horts tries to sell us PPG watches which are only of limited use for scientists?

And the scientist Ildar Rakhmatulin from Russia tries to sell us products which are based on the ADS1299 EEG chip from Texas Instruments with issues?

What just started are open source products from the scientist Peter Gamma from www.petergamma.org from Switzerland

as follow up products. An will these not be a big success in at least 10 years from now?