[fixermark]

> When he says he doesn't know, he actually knows

I don't think we have reason to believe the CEO is deeply familiar with all the strategies FB uses for session unification and user tracking. It's a fast-moving field with a lot of technical detail that a CEO doesn't actually need to keep day-to-day tabs on.

[Slansitartop]

Except this CEO has an engineering/development background, and I'd expect him to be deeply familiar with the criticisms on his company.