Most people in crypto know that the Bitcoin base layer suffers from a scalability problem. First introduced in 2015, the Lightning Network (LN) aimed to solve the scaling issues by using a Layer-2 payment channel network anchored to the base protocol. Lightning's scaling approach gained popularity over time and is now considered to be the de facto scaling solution for Bitcoin.
Launched in 2018, the first three years of the LN’s adoption were underwhelming. At the beginning of 2021, Lightning only had about $40 million in public capacity (i.e., total value locked) and was estimated to have fewer than 100,000 users with access to Lightning payments. It appeared that the network lacked the incentives needed to bootstrap the liquidity in payment channels necessary to facilitate transactions. Furthermore, the network was not capital-efficient, as it had to pre-fund channels with bitcoin, adding yet another hurdle to adoption.
Sami Kassab is an Enterprise Research Analyst focusing primarily on Web3 Infrastructure and Bitcoin. Sami previously spent 5 years as an Aerospace Engineer designing aircraft engines and missile & defense systems.