Hello. Now I often come across questions about how arbitrum nodes are an optimistic Tier 2 accumulator built to extend the scalability of Ethereum, and improve the performance of the previous generation blockchain platform. These are pieces of software that sit on top of the underlying blockchain layer, in this case, Ethereum, to speed things up. In short, it inherits all the strengths of Ethereum, including security and decentralization. Arbitrum is one such scaling solution and has become a popular place for Ethereum users to complete their transactions.