Today we're thrilled to be joined by acclaimed author Dave Birch, back on Rebank for Round 2. Dave previously joined us on Episode 24 to explore developments in digital identity. Dave is an internationally-recognized thought leader in digital money and digital identity. He has been named one of the global top 15 best sources of business information by Wired Magazine, one of the top ten most influential voices in banking by the Financial Brand, one of the top ten Twitter accounts for innovators by PR Daily, and one of the top three most influential people in London's fintech community by City A.M. Dave is perhaps Europe's most influential commentator on emerging payments and adjacent technologies, including digital identity, blockchain and privacy. Dave recently published a new book, called Before Babylon, Beyond Bitcoin, which looks at money as a concept and the ways it may evolve. Today, we look at the current crypto boom and what it's telling us about the future of money and economies. As always, connect with us on Twitter, Facebook, LinkedIn, or on our website at bankingthefuture.com. If you're a regular Rebank listener, please sign into iTunes and leave us a review. It helps others find the show.