> because we know the number of deaths We only know estimates of the number of deaths. The correct number lies somewhere between the official number of covid19

> because we know the number of deaths We only know estimates of the number of deaths. The correct number lies somewhere between the official number of covid19 fatalities and the total number of deaths during the same period, because one hand you have excessive mortality and on the other hand you have changes to the baseline due to changes in behavioral patterns. Excessive mortality are higher than officially recognized covid19 deaths and serve as a more accurate proxy for real covid19 deaths, but at the same time the baseline mortality might vary as well.