Author name: @nobumei (https://twitter.com/nobu_mei)

<aside> 💡 This page is a postscript.

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Table of Content

In the end

The author's first exposure to blockchain technology was BTC, which I purchased in 2017 as a way to pass the time during my company's new employee training program. Having no investment experience before purchasing BTC, I was happy and sad to see my asset go up and down. Now I think it's a cute thing.

Then the heavy losses in the bursting of the crypto asset bubble in 2018, the impact of the NFT shown by CryptoKitties, and the investment of our own assets and time gradually imbued us with the Web 3.0 philosophy, and we understood that this trend was inevitable. The Web 3.0 trend toward decentralization as a counter to centralized authority will continue to grow stronger.

When trying to learn Web 3.0, it tends to be localized and superficial at first.

If you look up "NFT" in a search engine, you will find superficial articles such as "How to sell NFT" or "Sold for 10 billion yen! and the content is full of copy-and-paste articles with affiliate links planted in them, which I feel is a detrimental effect of the advertising model introduced by Web 2.0.

In addition, the information on NFT alone is vast and new trends emerge every day, making it difficult to get a complete picture. There are high hurdles to overcome to get to the underlying cipherpunk philosophy of DeFi, Stablecoin, and NFT.

I have always wondered if there is a textbook-like book that provides a systematic overview of the Web3 industry.

I had no idea that I would be writing that book myself, but after explaining about Web3 to my boss in my corporate days for an hour, he often asked me, "Do you have any recommendations book?" "Well, I'll write it myself!" and started outputting my usual inputs as a newsletter, which led to this book.

It is absurd to try to get information about the Web 3 industry from books, as trends are passing by at a ridiculously fast pace, but as I continued to write, I became heartened and began to think about contributing to Web 3.0, which has given me so much.

The task of systematically compiling a newsletter that I had written in prose into a book was a painful one. I lost my original motivation when I resigned from the company I was working for at the time, but in order to contribute to the industry, I spent several hours a day writing this book while working at my day job, which led to its publication.

This book is designed to help people understand the Web 3.0 philosophy and is intended to help those who are just getting into Web 3.0. Therefore, I tried to include correct and flat information.

Although I have tried to include as many up-to-date examples as possible in our writing, the information on Web 3.0 is so vast that it is impossible for one person to compile it all by himself. The writing itself was completed in June 2021, but the content is constantly changing by the time of publication, as Terra shock and FTX incidents occurred during the proofreading and editing process.

Please understand that the content in this book may already be obsolete, but please keep in mind the ideas of Web 3.0 and the industry map that describes each layer of dApps, DeFi, etc. that you have learned in this book. New information is being reported day and night from the media, but if you have the ideas and the map, you will be able to categorize how important the information is and which layer of the story it is about. It would be a great honor for the author if this book could become a compass for surviving in the Web 3.0 industry.

In writing this book, I asked a number of well-informed people in the Web3 community to review it. I am afraid that the author, who is always in the position of being taught, is the one to publish this book, but I would like to thank Shingen-san, Tatsuzo-san, hory-san, Noritaka Okabe, Derio Tencho, miin-san, kozo-san, consome, Sota Watanabe, and Yuki Matsumoto-san. Thank you all very much. I would also like to express my deepest gratitude to Mr. Nishi Hatanaka and Mr. Satoshi Akiyama for their kind support in bringing the author's spiky writing style to a publishable level.