“You can get security in two ways in this world: through power or through privacy.” Obi Nwosu, co-founder of Fedi - the largest application layer built on top of e-cash protocol Fedimint - joins me on the show to discuss its role in protecting what he argues is the single most important feature of digital money: Privacy. Self-custody alone, he argues, “is not enough” for protection against attacks by those with resources and physical power — e.g. governments or anyone able to execute force against you. While the most privileged democratic societies have remained relatively safe from government seizure in recent history - this could change at any moment - as financial surveillance and resulting censorship of political expression is gaining steam. Of course, for the world’s most vulnerable users of money — those living under the reign of authoritarian governments or other non-democratic principalities — censorship, seizure and political and financial oppression are regular threats rendering privacy critical for survival. In this episode, Obi and I cover: -Bitcoin’s cypherpunk roots and the vision of private e-cash mints on top of Bitcoin, nearly from day 1 -Why privacy and security go hand-in-hand - and why security without privacy is ultimately a lame duck -Why e-cash protocols like Fedimint are likely the most practical privacy protocols in the Bitcoin scaling world right now -How activists and civilians are using Fedi to escape financial and political oppression throughout the global south A powerful interview for those who want to more deeply understand the true purpose of Bitcoin and its cypherpunk roots, it’s worth spending some time with this one. This episode of Bitcoin Rails is powered by: - Best In Slot — the leading API for Ordinals and BRC-20 data aggregation and indexing. - Spark — a statechains implementation advancing Bitcoin-powered payments. - Citrea — the leading Bitcoin rollup technology and BitVM alliance contributor. 📌 Timestamps 00:00 Intro 01:04 Background and Early Bitcoin Involvement 03:32 Challenges and Innovations in Bitcoin Privacy 06:10 The Importance of Privacy in a Free Society 28:03 Global Privacy Concerns and Future Outlook 40:46 Community Conversations and Functionalities 42:41 Diving Back into Technical Details 43:10 Real-World Applications and Challenges 44:39 Simplifying User Experience 47:20 Federation and Social Backup Mechanisms 01:11:25 Concluding Thoughts and Future Vision