This paper explains, Metcalfe's law states that the value of a telecommunications network is proportional to the square of the number of users of the system (n²).

Seismograph machines have long been recognized for their accuracy and reliability. Modern Seismometers continue to be the foundation of geological seismographic study, providing the first indication of seismic activity by feeding granular details regarding earth movements up to devices which interpret the raw information. This same information can be used after an event, providing higher-level analysis of exactly what occurred and precisely when.

When the earth moves, the seismograph is the instrument which tells the world. Similarly, when there's a Metcalfe related earthquake in the virtual world, you need the Endace NinjaProbe™ platform at ground zero.