How will Bitcoin Scale, so EVERYTHING can be built on top of it. What a great insight from Marco into his vision of scaling BTC in an Onion architecture. Where to store your Bitcoin? I personally use a BitBox! - Get a 5% Discount with code "ROBIN" - & visit: https://robinbtc.link/bitbox Where to buy Bitcoin? I personally use 21bitcoin! - Save fees with my code "ROBIN" - & visit: ⁠https://robinbtc.link/21bitcoin Best place to back-up your seed-phrase: - Get a 10% discount with code "Robin" - & visit: https://robinbtc.link/xellox Guest's contact: https://x.com/tierotiero Summary In this conversation, Marco Argentieri discusses scaling solutions for Bitcoin, specifically focusing on second layer solutions like Lightning and ARK. He explains the need for second layer solutions and how they complement the base layer of Bitcoin. Marco provides an overview of ARK and its differentiation from Lightning, highlighting the use case of checking accounts. He also discusses the potential for multiple second layer protocols to coexist and work together. Marco emphasizes the importance of Lightning as a bridge between different service providers and sees it as the lingua franca for connecting multiple layers. The main themes of the conversation are the challenges of inbound liquidity in the Lightning Network, the potential of covenants as a scaling solution, the role of altcoins in the Bitcoin ecosystem, and the importance of increasing Bitcoin's use as a medium of exchange. Takeaways Second layer solutions are necessary to scale Bitcoin and maintain its properties while enabling new use cases. ARK is a second layer solution that focuses on the checking account use case, providing a trustless bank-like service. Multiple second layer protocols can coexist and complement each other, with Lightning serving as a bridge between different service providers. Lightning is the lingua franca for connecting multiple layers and enabling day-to-day transactions. There is a need for continued research and development of new scaling solutions beyond Lightning. Inbound liquidity is a major challenge in the Lightning Network, making it difficult for users to receive small payments. Covenants are seen as a key solution for scaling Bitcoin and unlocking new types of second-layer applications. Altcoins can serve specific use cases, but it is important to ensure they do not compromise the security and economics of Bitcoin. Increasing Bitcoin's use as a medium of exchange, particularly in commerce, is crucial for its widespread adoption and utility. Chapters 00:00 Introduction and Background 00:28 Overview of ARK and Ventures 02:58 The Need for Second Layer Solutions 06:37 Differentiating ARK and Lightning 10:59 How ARK Works: Trustless Banking for Virtual Bitcoins 24:18 Exploring Other Layer 2 Solutions and Their Use Cases 27:50 Lightning Network: The Lingua Franca 31:03 Inbound Liquidity and Adoption Challenges 32:02 The Need for New Scaling Solutions 36:37 Silent Payments and Bitcoin-Native Financial Primitives 46:50 Bitcoin's Robustness and Resilience 55:15 Building a Bitcoin-Native Economy