Blockchain | Confused

Blockchain is a decentralized, distributed ledger technology that records transactions across many computers. This makes it incredibly difficult to alter, hack, or cheat the system. Originally conceived as the underlying technology for Bitcoin in 2008 by the pseudonymous Satoshi Nakamoto, blockchain has evolved far beyond cryptocurrencies, promising to revolutionize industries from supply chain management to digital identity. Its core innovation lies in its ability to create a tamper-evident, transparent, and secure record of events without relying on a central authority. The ongoing debate centers on its scalability, energy consumption, and the potential for centralized control to emerge despite its decentralized roots.