What I keep forgetting about timeouts

I used to add a layer of abstraction the first time I saw a pattern repeat. Now I wait for the third. The waiting is uncomfortable, but the abstractions that survive that wait tend to last.

Latency budgets work better than latency targets. Targets are aspirational. Budgets force you to delete features when you go over.

There's a kind of premature optimization that comes from imagining a future team. "What if someone needs to swap this out?" Often, no one does.