This already happens and has been going on for a decade. https://www.theguardian.com/money/blog/2010/aug/07/computer-cookies-booking-online https://www.theguard

This already happens and has been going on for a decade. https://www.theguardian.com/money/blog/2010/aug/07/computer-cookies-booking-online https://www.theguardian.com/money/blog/2010/aug/07/computer-...