Oh, wait. You don't understand that the CFR and IFR are not the same thing? That explains a lot. I thought you were just being disingenous when comparing the ea

Oh, wait. You don't understand that the CFR and IFR are not the same thing? That explains a lot. I thought you were just being disingenous when comparing the early CFR statistics to the current IFR estimates. The CFR is, by definition, computed from known cases. It's thus trivial to determine exactly: just divide the confirmed deaths by confirmed cases. So we definitely know the CFR of flu. The problem is, of coures, that it's highly likely to be an over-estimate. On the other hand, the IFR is hard to determine, since we don't know which cases we missed, nor whether the unresolved cases will end up living or dying. Which is why all we have is estimates.