1. GP is arguing that even assuming that the entire USA had been infected (ie, using the largest possible denominator), there were enough deaths for the IFR to

1. GP is arguing that even assuming that the entire USA had been infected (ie, using the largest possible denominator), there were enough deaths for the IFR to exceed 0.15%. 2. 0.15% is not "the current best estimate", but an estimate by John P. A. Ioannidis who has published some remarkable sophistry at the beginning of the pandemic, which was (while not technically wrong) absurdly misleading IMHO. I'd say best estimates for the IFR now a) acknowledge that it depends enormously on age (looks like a pretty exponential relationship), thus on the age structure of a country/state, and b) put it, for the US, say, between 0.2% and >1%.