I don't know if this answers your question, but Zuckerberg often answers in questions that machine-driven data is often not good enough, and there needs to be c

I don't know if this answers your question, but Zuckerberg often answers in questions that machine-driven data is often not good enough, and there needs to be core social elements in a technology to delivery quality data for many applications. What that means in practice, who knows, but with Google's engineer-heavy focus, I would venture to guess that Google at least is (and has been) heavily focused on a machine-driven philosophy.