In this video, Professor Larru introduces the concept of Blockchain technology, a groundbreaking innovation with far-reaching implications for finance and beyond. He starts by contextualizing the need for trust in traditional payment systems, where reliance on central authorities like banks or governments is inherent. Transitioning to digital payments, he outlines the complex web of trust involving multiple entities, such as credit card companies and banks. Professor Larru emphasizes the decentralized nature of Blockchain, making it resistant to tampering and fraud, thus revolutionizing trust in digital transactions. Through clear examples and analogies.