Discover why one fax machine is useless, two can communicate, and millions create an unstoppable force that shapes our digital world.
In 1980, a single fax machine was worthless. By 1990, it became essential. Not because the technology improved, but because everyone else had one.
Network value grows as n² (Metcalfe's Law). Each new user adds value for everyone, creating explosive growth.
As networks grow, leaving becomes increasingly costly. You're not just leaving a service—you're leaving all your connections.
Network effects create natural monopolies. Once a standard reaches critical mass, it becomes nearly impossible to displace.
Early networks have a massive advantage. Getting big fast is often more important than having the best technology.