When Bitcoin launched in 2009 the promise was that it would allow financial transactions on a peer to peer network without the need for any financial institutions or government control. A lot of people that knew about it at the time were very excited about the possibilities while others were somewhat skeptical.

The digital currency was actually a secondary consideration. It was the blockchain technology that so excited the creators and those that were part of the peer to peer community. But the Bitcoin currency has turned out to be a lot better than was expected. There are several reasons for its significant growth in popularity in this book.