Lately, I've been hearing people talk about modular blockchains. Honestly, at first I didn't pay much attention. For someone like me who focuses on on-chain art and occasionally does small-scale market making, my most direct feeling is: for the same transaction, confirmation is faster, and the fees are less likely to suddenly scare you. Liquidity may be dispersed, but crossing chains back and forth isn't as "fragmented" as before. Later, I realized that modularity doesn't really change the fact that I need to understand more concepts; instead, it lowers the psychological cost of "switching chains and ecosystems" in my wallet. The narrative is still flying, but I prefer to chase the side that goes deeper and has less slippage. Recently, RWA, US bond yields, and on-chain yield products have been compared together. I just took a look: no matter how good the returns look, in the end, you still need to be able to exit anytime and get out, otherwise it all feels a bit mysterious. That's it for now, I'll observe gradually.