'asymptomatic non tested population' is an interesting way to refer to people with covid 19 antibodies found via immunoassays. This sizeable population shows that our cfr estimates have enough error to be meaningless.
CFR does not have "error rate" this way. It is just defined differently then you thought it is defined. You thought it is mortality, it never was. It is the only number available at the beginning of epidemic (no matter which one).
"asymptomatic non tested population" is the most exact description of people who were not tested, had no symptoms and therefore don't count as "cases". Yes, we measure them by measuring antibodies if precise tests are available.
