Get a user to reach 7 friends in 10 days. It’s a simple elegant statement of what it was to capture core product value, define what it meant to be able to onboard into a product that allowed you to communicate, to get into a network, to find density – and then iterate around that.
https://ryangum.com/chamath-palihapitiya-how-we-put-facebook-on-the-path-to-1-billion-users/

