To be honest, modular blockchains are being hyped pretty loudly, but for ordinary users like us, what actually changes? I looked into a few projects and still have to ask first: are the price feeds and update frequency reliable? In the past, on a single chain, data availability and the execution layer were tied together—if something went wrong, at least you knew where to look. Now that it’s split into modules, the data layer, settlement layer, and execution layer each do their own thing. If a certain module’s oracle price feed is delayed or tampered with, users basically won’t know which step failed.

Anyway, I’ve seen plenty of cases: DeFi protocols collapsing, and the root cause is a disconnect between the price read by the oracle and the real market. Modular design may give developers more flexibility, but for end users, you don’t know which module combinations power the underlying layer of the DApp you’re using. Add to that the recent mess with miners/validators’ revenue being disrupted by MEV and concerns about ordering fairness, and retail users are all complaining: even if you split things up beautifully, when I transfer, my slippage doesn’t go down, and neither does frontrunning.

In plain terms, no matter how flashy the modular concept is, if the security details don’t keep up, it just gives hackers a few more doors to come through. Anyway, I’m being cautious—first I’ll check whether those price feed sources are tamper-resistant. We’ll talk about the rest later.