The Internet Is Made Of Cats

 http://www.youtube.com/watch?v=zi8VTeDHjcM

The multiplication of two cats produces another cat.

Cat * Cat = Cat

Cat² = Cat

Cat = sqrt(Cat)

The only numbers for which sqrt(n) = n are 0 and 1, therefore all cats are equal to either 0 or 1.

The internet is a network based on the computers connected to it sending various patterns of the bits 0 and 1 to each other constantly; this can be referred to as being "made of bits". As proven above, the bits 0 and 1 are both equal to cats. Therefore, the internet is made of cats.

QED.