It’s a pretty clear corollary from the network effect: if social networks are only useful when a lot of people use them, a decrease in user engagement is the be

It’s a pretty clear corollary from the network effect: if social networks are only useful when a lot of people use them, a decrease in user engagement is the beginning of a death spiral. Fewer users -> Facebook is less useful -> fewer users. Part of the problem is that friendship is binary: you’re either a friend or you’re not. But that leaves little wiggle room as people’s lives and real world relationships evolve. You’re constantly being reminded about old friendships that are much less relevant now.