In an interview with Newsweek’s Dan Lyons, Mark Zuckerberg puts forth an interesting theory:

But in reality, more users means more revenue. As we grow, we will become increasingly profitable.

We can’t help but wonder- is this currently true? Or is this equation based on future revenues and possible profitability internationally? It seems clear that Facebook falls victim to the thinking around YouTube- that monetization becomes more difficult with increased costs and, in fact, every new user eats into revenue, preventing profit.