"The power of the network increases exponentially by the number of computers connected to it. Therefore, every computer added to the network both uses it as a resource while adding resources in a spiral of increasing value and choice."

Ethernet을 만든 Robert Metcalfe정의한 네트워크 효과에 대한 법칙

네트워크의 가치와 효과는 사용자수의 제곱에 비례한다. -- Metcalfe's Law