These days, I see a bunch of people taking "on-chain data" as an omniscient perspective, claiming who is front-running, who is dumping and running away... I want to pour some cold water: what you see on-chain might already be "late" to begin with. Nodes lag behind, RPCs cache/rate-limit, indexers have to wait until they finish scanning, storing, and then generating charts. Any slowdown in these steps means what you see isn't real-time but "already processed past data." Not to mention some wallets or dashboards also categorize data according to their own rules—convenient, yes, but it also smooths out the details.

Recently, AI agents and automated trading systems have been quite popular, with narratives flying high, but when it comes to on-chain interactions—who to choose for RPC, whether to look at signature pop-ups, retries after failures—these are rarely discussed. Honestly, security details are the most time-consuming. Anyway, when I look at the chain now, I first ask: what's the data source, what's the delay, is it indexed or not? Otherwise, a lot of discussions might be based on mismatched timelines. Forget it, I won't talk about anything else for now.