Bitcoin is changing the world.
The world has seen many major improvements to human life, among which are vaccines, electricity, radio, automobiles, and the internet. Some of these technologies start out as rich people’s games, but eventually they trickle down to the general public and bring huge benefits to Earth’s population. Bitcoin will soon be right there among them. This is what makes me super-excited about Bitcoin.
Luckily, I’m fortunate enough to live in a pretty functional society. When conducting financial transactions, I never have to worry that someone will come knocking on my door. I’ve never felt that I need to spend my money immediately because otherwise hyperinflation will eat my lunch. But that also makes it harder for me to grok why Bitcoin is important. Bitcoin is mostly theoretical to me, but when I hear reports from less fortunate people living under oppressive or incompetent regimes about how Bitcoin makes their lives better, it becomes very real. Bitcoin will give people an opportunity to opt out of the system that’s holding them hostage.
Satoshi Nakamoto, a pseudonym for a person or a group that wants to remain unknown, published a scientific paper on a cryptography-oriented e-mail list in October 2008. The title of the paper was, “Bitcoin: A Peer-to-Peer Electronic Cash System” (see web resource 1 in appendix C). Nakamoto’s paper described the vital parts of Bitcoin, the first digital money system where there’s no central authority to issue money or process transactions. In January 2009, Nakamoto published the first software program to implement the described system. Bitcoin didn’t get much attention then, apart from within a very limited set of cryptography experts. Gradually, as the system proved itself to be working, more people became interested. But the resistance against Bitcoin was and is still far bigger and louder than the adopters, as is the case with all groundbreaking new technology. As of 2019, hundreds of millions of people are aware of Bitcoin, and tens of millions of people are using Bitcoin.
When I started exploring Bitcoin in 2013, it took me a long time to acquire a decent understanding of the technology. That’s not because I’m remarkably stupid; it’s because Bitcoin is a complex system. It’s not just a fancy database—it’s a mishmash of economy, mathematics, technology, and anthropology.
I started a technical blog about Bitcoin in 2015, and I guess Manning liked my content, because the company sent me an email asking if I was interested in writing a book about “blockchain.” Since my passion is Bitcoin—not only the blockchain, an overly hyped word for Bitcoin’s database—I replied and thanked Manning and said I’d be interested in writing a book about Bitcoin. I’ve struggled a few years trying to find a my place in the Bitcoin community, and this opportunity seemed like a great fit. The project started, and it turned out to be far harder and far more time-consuming than I expected.
This book began as a typical technical description of Bitcoin, but it was difficult to teach one topic without the full context. The cognitive load at the beginning of the book would be too overwhelming. It became clear that I needed to do something else. I discussed it with my wife, and we came up with the idea of conceptually building Bitcoin from the ground up. The book starts with a really simple spreadsheet system that anyone can understand, and that system evolves into Bitcoin. Each chapter points out some problems with the current system, and we fix them by adding the technology covered by that chapter.
The manuscript for Grokking Bitcoin will be released under the Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) license shortly after its print publication. Releasing a version under an open license was a requirement I had in writing this book. It is my way of giving back to the Bitcoin community that has given me so much over the years. It is my, and Manning’s, hope that those who can’t afford to buy this book will benefit from the open source version. There are, of course, less philanthropic reasons. We also hope that open sourcing this book will give it more visibility, as potential readers browse through it. Please buy the beautifully typeset version if you can afford it. Manning and I have spent an enormous amount of time and effort in producing this book, and we would greatly appreciate the income!
I hope you enjoy reading Grokking Bitcoin as much as I suffered writing it!