The Future of Adver in System - Does It Work?

Gogal claims that you get about 95 % of the conversion rates that you get with cookies, but we have zero visibility into the tests that they run. If it works, and it is the future of the adver in system, does it really quiet the privacy concerns that we have? The combination probably tells you more than you would want to give away. Last week, engineers already found pieces of code on amazon dot com, on hole foots dot com, that block the flock information.