Today someone asked again, "Why did the chain get stuck for a moment? Is it because your nodes are down?"

I want to clarify: many times it's not that the chain has stopped, but that you're waiting in line for data.
RPC will rate limit, especially when you're querying a bunch of addresses/logs all at once;
indexers and subgraphs also need to sync blocks and fill in historical data.
When there's a reorganization or a sudden influx of events in a certain segment,
the data will act like waiting for a delivery—on the way but just not refreshing.
In other words, what you see as "latest" is actually pieced together from several layers of cache and queues.

Recently, the group has been discussing stablecoin regulation, reserve audits, and de-pegging rumors.
Everyone gets nervous and starts frantically checking on-chain inflows and outflows,
which ends up flooding public RPCs,
and then they become even more anxious: if the data isn't updating, something's wrong.
Anyway, I’ve gotten used to a "backup" approach:
cross-check the same issue with two or three data sources,
wait if it's slow, don’t jump to conclusions based on delays.
That’s how I handle it for now.