[moheeb]

Like what?

Chat and games are excluded, as Facebook was doing that before having a global network of users assembled.

[mkr-hn]

I'm talking about the infrastructure that brings those users together, not the users themselves. They could start an AWS competitor, or anything they want.

[moheeb]

In that case they could have done all that before having the "global network of users assembled".

[mkr-hn]

Ignore that part if it helps you focus on the point.