The single-user utility should allow creation of content that will ultimately form the core of the network. The core of Instagram is pictures.

If you’re building a technology platform, making it “social” really means figuring out what the nodes, edges, and jumping functions should be. One way to do this is to work backwards. What should the experience feel like at scale? Do users care about what other people are doing on the network, or do they really care about other types of objects,... See more