This podcast explores the hurdles to widespread adoption of on-chain cryptocurrency payments. Although Bitcoin has been around since 2008, it hasn't yet replaced traditional payment systems. The speaker contends that issues like scalability, privacy, stablecoins, and account management aren't the main barriers. Instead, the real challenge lies in the lack of interoperability among different blockchains, cryptocurrencies, and fiat systems. The speaker emphasizes that achieving interoperability—enabling smooth transitions between various payment methods—is essential for developing a truly functional and globally accessible on-chain payment system, which could help emerging economies skip the neobank phase altogether.