Good tools answer the question so fast you forget you were the one who asked it. Dashboards, runbooks and AI incident summaries are all useful, and all quietly retire the questions you used to ask yourself. Curiosity is a muscle: when your systems stop requiring it, you stop exercising it, and a genuinely novel failure then finds you out of practice.

This week: why good tooling de-skills incident investigation, a Hard Stop worth sitting with, a 20-minute habit to keep the muscle warm, and the new Signal Check segment answering two listener questions (how to find the change behind an incident, and whether AI is really improving IT operations).

None of this is anti-AI. Automation, mature tooling and plain seniority all quietly retire your questions. The point is to notice and put the reps back on purpose.

Metrics & Mayhem: A CTO's Guide to Observability That Actually Works is out now on Amazon and Kindle. Free chapter: https://www.masteringobservability.com/metrics-and-mayhem/free-chapter