The Lightning Network is a “layer 2” payment protocol designed to be layered on top of a blockchain-based cryptocurrency such as BitcoinBitcoin1$ 77,295.840.18%-6.01%-15.89%details or Litecoin
Litecoin13$ 71.000.13%0.39%1.59%details.
It is intended to enable fast transactions among participating nodes and has been proposed as a solution to the bitcoin scalability problem
It features a peer-to-peer system for making micropayments of cryptocurrency through a network of bidirectional payment channels without delegating custody of funds.
Normal use of the Lightning Network consists of opening a payment channel by committing a funding transaction to the relevant base blockchain (layer 1), followed by making any number of Lightning Network transactions that update the tentative distribution of the channel’s funds without broadcasting those to the blockchain
You can focus on things that are barriers or you can focus on scaling the wall or redefining the problem.