I'm not very good at explaining those big architecture terms, but I understand modularity. The biggest change for ordinary users is actually quite "unnoticeable": you still click confirm, pay gas, and wait for the funds to arrive, but behind the scenes, execution/data are separated. This allows the chain to scale better and possibly makes fees more stable. Additionally, wallet and cross-chain entry points will become a bit more chaotic... To put it simply, developers are very excited about the narrative at the DA layer, but users are just confused: I just want to transfer funds without getting stuck. For someone like me who is more neutral/arbitrage-oriented, modularity feels more like "more tentacles": price differences and congestion between different chains/rollups will occur more frequently, but there are also more pitfalls, especially regarding the security boundaries of bridges and new chains. Anyway, I prefer to earn a little less than to risk my positions on an unfamiliar route. For now, the market's tentacle game still requires constant caution.