Nick Szabo (@NickSzabo4) is a polymath. The breadth and depth of his interests and knowledge are truly astounding. He's a computer scientist, legal scholar, and cryptographer best known for his pioneering research in digital contracts and cryptocurrency. The phrase and concept of "smart contracts" were developed by Nick with the goal of bringing what he calls the "highly evolved" practices of contract law and practice for the design of electronic commerce protocols between strangers on the Internet. Nick also designed Bit Gold, which many consider the precursor to Bitcoin. This wide-ranging conversation is co-hosted by Naval Ravikant, a mutual friend and one of the most successful investors in Silicon Valley, who also happens to be one of Nick's biggest admirers. We cover a lot, including: What is Bitcoin, what are cryptocurrencies, and what problem do they solve? What is "social scalability?" What is Ethereum and what makes it unique? Strengths and weaknesses? How will smart contracts actually get adopted or go mainstream? What are ICOs (Initial Coin Offerings)? Blockchain governance -- is there any existential risk? "Wet" versus "dry" code Pascal's scams Quantum thought What fields will you be working on in the future? Show notes and links for this episode can be found at www.fourhourworkweek.com/podcast. This podcast is brought to you by FreshBooks. FreshBooks is the #1 cloud bookkeeping software, which is used by a ton of the start-ups I advise and many of the contractors I work with. It is the easiest way to send invoices, get paid, track your time, and track your clients. FreshBooks tells you when your clients have viewed your invoices, helps you customize your invoices, track your hours, automatically organize your receipts, have late payment reminders sent automatically and much more. Right now you can get a free month of complete and unrestricted use. You do not need a credit card for the trial. To claim your free month and see how the brand new Freshbooks can change your business, go to FreshBooks.com/Tim and enter "Tim" in the "how did you hear about us" section. This podcast is also brought to you by Audible. I have used Audible for years, and I love audiobooks. I have two to recommend: The Graveyard Book by Neil Gaiman Vagabonding by Rolf Potts All you need to do to get your free 30-day Audible trial is visit Audible.com/Tim. Choose one of the above books, or choose any of the endless options they offer. That could be a book, a newspaper, a magazine, or even a class. It's that easy. Go to†Audible.com/Tim and get started today. Enjoy.

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Past guests on The Tim Ferriss Show include Jerry Seinfeld, Hugh Jackman, Dr. Jane Goodall, LeBron James, Kevin Hart, Doris Kearns Goodwin, Jamie Foxx, Matthew McConaughey, Esther Perel, Elizabeth Gilbert, Terry Crews, Sia, Yuval Noah Harari, Malcolm Gladwell, Madeleine Albright, Cheryl Strayed, Jim Collins, Mary Karr, Maria Popova, Sam Harris, Michael Phelps, Bob Iger, Edward Norton, Arnold Schwarzenegger, Neil Strauss, Ken Burns, Maria Sharapova, Marc Andreessen, Neil Gaiman, Neil de Grasse Tyson, Jocko Willink, Daniel Ek, Kelly Slater, Dr. Peter Attia, Seth Godin, Howard Marks, Dr. Brené Brown, Eric Schmidt, Michael Lewis, Joe Gebbia, Michael Pollan,