Three log lines that saved an outage

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

I trust monorepos more in the second year than I did in the first. Most of the early friction goes away once the tooling catches up.

When a system surprises me, my first instinct used to be to fix the surprise. Now my first instinct is to figure out which mental model of mine was wrong, and update that.

Most retry logic I've removed turned out to be hiding a real bug. The retries made the failure invisible, and the bug compounded for months in the background.