One hundred billion people lived on planet Earth throughout its history. If each of them had talked on the phone for a minute, then the very amount that Skype had solemnly announced would have turned out.
It is exactly 100 billion minutes that Skype users have uttered over the four and a half years of its existence. Only free minutes are meant to connect between two Skype.
Free communication allows people to speak an order of magnitude more than they are used to. In such conditions, communication sessions that last for hours or even days and hours are quite normal. Many calls would never have been made if it had not been for free. In other words, Skype has really greatly changed our reality and has already irreversibly changed the future of mankind. ')
Currently, the service has 276 million registered users, and in the last quarter this number increased by about 30 million.