Skype has 500 million registered users, Mozilla has 350 million users; and Wikipedia has about the same. "It is probably the same users that downloaded Mozilla," Jimmy Wales jokes. He is in a good mood, since Wikipedia is very effective – and, he says later, the number of editors is stable, despite news reports to the contrary. Skype, Mozilla and Wikipedia disrupt several industries, and they do it with a minimum of effort.

Mozilla has 250 people working for it, which is a lot compared with Wikipedia's paid staff of 30. "How do you do it?" asks Vardi. Wales answers: "I am a really fast typist," before thanking the community of 3,000 volunteers. "Wikipedia is a very, very bad business. Everything is free. It is really hard to compete with us."