The Lightning Network is a payment layer built on top of Bitcoin designed to handle high-frequency, low-value transactions that would be impractical directly on the main chain. It works by opening a payment channel between two parties, allowing them to transact unlimited times instantly and at near-zero cost. Only the opening and closing of the channel get recorded on the Bitcoin blockchain. This architecture makes it possible to use Bitcoin for everyday purchases - coffee, streaming, tipping content creators - without waiting for block confirmations or paying disproportionate fees. Services like Strike and Fountain are already building real user experiences on top of Lightning, making it a meaningful development for Bitcoin's long-term utility case.