Ethereum 2.0 represents a major upgrade to the Ethereum network. The shift from proof-of-work to proof-of-stake is a fundamental change. In a proof-of-stake system, validators are chosen based on the amount of cryptocurrency they hold and are willing to "stake" as collateral. This is expected to reduce the energy consumption of the network significantly, addressing one of the major criticisms of Ethereum. It also aims to improve scalability by enabling the network to process more transactions...