Literally every epidemic model being used to justify lockdowns depends on IFR as a critical parameter, and the best we can do right now is guess at the value.
If the IFR is 1/10th (quite possible!) or 1/50th (less likely, but still possible) of the current estimate, it completely changes the calculus for locking things down. A fifty fold under-estimate of infections would mean that approximately half of NYC has already been infected, for example, and that we're not far from herd immunity.
If the IFR is 1/10th (quite possible!) or 1/50th (less likely, but still possible) of the current estimate, it completely changes the calculus for locking things down. A fifty fold under-estimate of infections would mean that approximately half of NYC has already been infected, for example, and that we're not far from herd immunity.
We just don't know.