now, I will say that Boz was pushing to have facial recognition when I was were, and some of the early storyboards for XROS were pretty reilant on it (ie in an office having the sims like diamonds above your head that indicated who you were and if you were busy)

I assumed that Zuck said no because he'd had enough time with the lawyer and the FTC sniffing about to not bother.

However the glasses based AI lifelog stuff (which was basically a really effective personal assistant) would be a lot more effective if it could use facial recognition (we weren't allowed to use speaker diarization as that would allow us to record individual audio from users and recognise them like with facial recognition)