Then how would it be 55x worse than my back of the envelope estimate? Even if COVID killed infants rather than old people, then a 0.1% death rate would amount to only a 0.1% reduction in average life span or about 0.08 years.
Are there other effects like people putting off cancer diagnostics and treatment? Are some people permanently crippled by COVID and will die early? Yes, certainly for both, but I want numbers other than tossing out a 1.13 year reduction in lifespan without explaining it.
This reminds me of the Fair Tax where my numbers did not come anywhere close to the official ones from proponents. It turned out they had hidden a major assumption in their calculations.
Bear in mind that this is not about the total loss of years of life, but rather about the reduction in average life-span for the duration of the Corona Crisis.
I.e., it is not a permanent reduction in life-expectancy - as might be expected from, e.g., a general, large-scale, and lasting change in smoking rates, obesity rates, etc.
Remember that this "life expectancy" is a mathematical construct. Even if - between January of 2020 and July of 2021 - the virus killed EVERYONE over the age of 80 (or EVERYONE between the ages of 33 and 34), as long as the pandemic petered out in mid-2021, then the average life-expectancy would return to normal in 2022 (or even actually rise because a lot of "deadwood" would have been "cleared out").
Your "calculations" don't take that into account.
Regards,