What Are You Worrying About?

More than half of ad request to day do not have a persistent identifier attached to them. That's because they're either otar or fire fox, which don't allow persistent third party cookies. So i think there's already something interesting there that we have a long sort of pedigree as an industry of ignoring the fact that so much of the audiences is not identifiably, not measurable, not targetable. A ik: The big x factor to me is what, what other tricks does facebook have up its sleeve beyond this? And i never know.