Ledgers are necessary to scale money in a digital age, but they require trust, just as fiat currency needs trust in the issuing authority. However, physical coins or cash do not require trust, but they cannot scale and may not be practical for certain transactions. Bitcoin solves both problems by using a decentralized ledger that does not rely on a central authority while also being able to scale with technological advancements such as the Lightning Network. With Bitcoin's transparent and immutable ledger system, trust is secured by cryptography rather than a centralized entity like traditional banking systems.#bitcoin #ledger