Ethereum is like a super city with busy economic activities. It runs around the clock, spans the world, and allows anyone to access it. Unfortunately, Ethereum has always been affected by its own success: due to its high transaction costs, many users have been lost. But don't worry, the expansion of Ethereum has arrived, and its expansion is not only in the form of L2 (Layer 2) that people often talk about-Ethereum is expanding on many different fronts!