I mean during regular driving there are moments requiring intervention that occur at unpredictable times and when you're about to die if not properly responded

I mean during regular driving there are moments requiring intervention that occur at unpredictable times and when you're about to die if not properly responded to, they're just awash in a sea of lower stakes interventions. My commute is about 3 miles and this morning I had two people in front of me slam their brakes unexpectedly and another person swerve into my lane just ahead of me. So that's roughly one high stakes human intervention per mile. I'm not saying that 13 per mile is good enough, but the metric does seem useful.