Fragmentation

Chapter 1: The Platform Bargain

In 2004, a 19-year-old computer science student at Harvard named Mark Zuckerberg launched a website called "TheFacebook" from his dorm room. It was one of thousands of internet projects launched that year, most of them forgotten. There was nothing obviously revolutionary about it. The site did not invent social networking—Friendster, Orkut, and MySpace already existed. It did not pioneer the concept of sharing personal information online. It did not solve a technical problem that was otherwise unsolvable. What it did was implement a specific economic model with ruthless clarity, and that model would reshape how billions of people experienced information, connection, and knowledge for the next two decades.

The model was simple: offer a free service that connected people to their friends and the information they cared about. Extract detailed data about users' behavior, preferences, and social graphs. Use that data to sell advertising with unprecedented precision. Grow the user base constantly, because growth made the advertising more valuable. Never charge users directly, because charging would limit growth. Never build interoperability with competitors, because walled gardens were more profitable.

This was not a novel insight. Advertising-supported media had existed for centuries. What was novel was the scale and scope at which this model could operate, enabled by the internet's technical architecture and the declining cost of computing. A newspaper or television station had to serve a geographic market and could extract only limited information about its audience. Facebook could serve the entire world and extract