Join us on this episode as we delve into the fascinating world of payment systems, from ancient barter to cutting-edge biometrics. We explore the recent announcement by Amazon to expand its Amazon One palm recognition system to all Whole Foods stores, revolutionizing the way customers pay. With this technology, customers can simply wave their hand to complete transactions, marking a significant shift in how we interact with money. We discuss the implications of this advancement, its potential impact on society, and the broader trend of payment systems constantly evolving. From the birth of the debit card to the rise of biometric authentication, join us as we navigate the ever-changing landscape of payments.