What is trustless blockchain & cryptocurrencies?
Could you elaborate on the concept of trustless blockchain and cryptocurrencies? I'm curious to understand how these technologies operate without relying on traditional trust mechanisms. What makes them inherently trustless, and how do they achieve this? Additionally, how do cryptocurrencies fit into this paradigm, and how do they utilize the trustless nature of blockchain to ensure secure and reliable transactions? I'm interested in understanding the key principles and mechanisms that underlie these technologies.