“You can theorise a lot about the experience we’ve had, but having lived it has changed my worldview and my appreciation in such a way that now I have this unshakeable conviction that Bitcoin is the only form of neutral internet money there will ever be.”— David MarcusDavid Marcus is CEO & co-founder of Lightspark, a Lightning Network payments protocol. In this interview, we discuss his career in the payments industry and former role as head of Facebook's Libra project, his frustration with the current financial system, how Lightspark is focusing on addressing the challenges of the Lightning Network, the potential impact of real-time payment systems and the scalability of Bitcoin.- - - - David Marcus' journey into the payments industry began at the age of 23 when he started his first company after working at a bank. He built a successful telco company in Switzerland and later started another company focused on mobile payments. His journey took him to Silicon Valley, where his company was eventually acquired by PayPal.Despite his success, Marcus feels frustrated with the state of payments and the lack of an open and interoperable protocol for money on the internet. He believes that money is an important aspect of people's lives and how they measure success. He sees a lot of injustice in the current financial system and feels passionate about improving it.Our conversation covers David’s role in heading Facebook's involvement in the payments space, particularly with the development of Libra, a payment system designed to reach billions of people. We talked about the challenges and pushback the project faced, and how the Libra project was a significant part of Marcus' journey in building his current company, Lightspark. David has come to the conviction that Bitcoin is the only form of neutral internet money, which stems from his experience trying to build a technology that could scale and provide a stable form of digital money. He believes that a real-time global payment systems, similar to sending an email or text message, combined with the decentralization and liquidity of Bitcoin, can unleash a significant increase in global GDP. Scaling issues will be a major challenge as adoption increases.Lightspark seeks to help address these limitations by focusing on the usability and operational challenges of the Lightning network, such as liquidity management and route finding. They have developed technology to simplify Lightning's channel-based system, making it easier to spin up and maintain Lightning Network nodes, allowing for faster and cheaper bitcoin movement. There are also other potential innovations that could greatly enhance Bitcoin’s use as a payments rail.- - - - This episode’s sponsors:Iris Energy - Bitcoin Mining. Done Sustainably Bitcasino - The Future of Gaming is hereLedger - State of the art Bitcoin hardware walletWasabi Wallet - Privacy by defaultUnchained - Secure your bitcoin with confidenceOrange Pill App - Stack friends who stack sats-----WBD721 - Show Notes-----If you enjoy The What Bitcoin Did Podcast you can help support the show by doing the following:Become a Patron and get access to shows early or help contributeMake a tip:Bitcoin: 3FiC6w7eb3dkcaNHMAnj39ANTAkv8Ufi2SQR Codes: BitcoinIf you do send a tip then please email me so that I can say thank youSubscribe on iTunes | Spotify | Stitcher | SoundCloud | YouTube | Deezer | TuneIn | RSS FeedLeave a review on iTunesShare the show and episodes with your friends and familySubscribe to the newsletter on my websiteFollow me on Twitter Personal | Twitter Podcast | Instagram | Medium | YouTubeIf you are interested in sponsoring the show, you can read more about that here or please feel free to drop me an email to discuss options.