[fuzzfactor]

Well, so many life-saving physicians and other health care workers undergo periods of extreme work hours.

If they wouldn't have been capable of accomplishing so much over as short a calendar period, I would estimate higher fatalities, especially during the pandemic but also over all the other decades.

I expect there is an equation for this tragic number.

It doesn't matter how many more life-savers you deploy, simply because there will never be enough of them, things will always be better if one or more of them put in a little extra time.

Should also be equations for the positive-outcome/number-of-hours.