The first phase of the core framework, naturally, is called the Cold Start Problem, which every product faces at its inception, when there are no users. I’m borrowing a term here for something many of us have experienced during freezing temperatures—it’s extra hard to get your car started! In the same way, there’s a Cold Start Problem when a networ

Almost always, churned users don’t receive any communication at all. You can boost reactivation success rate significantly just by sending a weekly digest of the activity in a user’s network, or “Your friend X just joined” notifications. The other question to ask is, if a user wants to reactivate, how hard is it? At Uber, we had a staggering statis

For networked products, the curation of the network—who’s on it, why they’re there, and how they interact with each other—is as important as its product design. Starting with a deliberate point of view on who’s best for your network will define its magnetism, culture, and ultimate trajectory.

To consistently ensure that people never experience zeroes, the network needs to be built out substantially, and it needs to be active, too!