Layer 2 are technology solutions or systems running on Layer 1, their securities are inherited from Layer 1, with the ability to process more transactions, reduce costs and better off at transaction confirmation speed. ETH 2.0 is the most optimal Layer 2 opening new pathways to DeFi applications. Nevertheless, ETH 2.0’s roadmap is foreseen to have a long way to go. Therefore, Binance Smart Chain shall be a great Layer 2 solution at the time being.