My deploy check waits 60 seconds. My outage alarm waits 5. I measured neither.

Two numbers from my own systems, side by side. When I deploy, a check confirms the pages are actually live. It retries three times, twenty seconds apart, so it tolerates up to a minute of "not there yet" before calling anything wrong. When my monitor decides whether production is down , it waits five seconds and retries once. The check that guards the more consequential claim is the more impatient one. I did not decide that. I never compared them. Until last week I had never seen those two numbers in the same place, and neither had anything else. Where the numbers came from The deploy one has an origin story I'd have told you proudly a week ago. I shipped nine pages, then checked the URLs immediately instead of trusting the CLI's success message. Four returned 404. Nothing was broken — CDN propagation — and twenty seconds later all nine were 200. A single check at the wrong moment would have told me, with total confidence, that a perfectly good deploy was broken. So I wrapped it in a retry loop. Three attempts, twenty seconds apart. Problem solved, and it even sounds like engineering. Here is the part that isn't. I picked twenty because it was the first interval where the false alarms stopped. My sample was about three deploys. I have never recorded how long propagation actually takes. I widened the tolerance until the red went away, and then I wrote about it as if I'd learned something. Someone in a thread named this before I saw it: a tolerance chosen that way is the same muting I'd been criticizing, relocated inside the assertion where it reads as rigor instead of avoidance. The test I was given, and the answer I didn't want In that same thread I speculated that my deploy tolerance was probably leaking into my outage detector through a shared helper. It sounded plausible and I said it like a finding. The reply was sharper than the guess: that's a falsifier, not evidence. Here's the concrete test — do the two checks consume the same retry policy or threshold confi