> it makes absolutely no sense to use the same target for a lagging measure of a growing epidemic as for a shrinking one Indeed that measure is unattainable in

> it makes absolutely no sense to use the same target for a lagging measure of a growing epidemic as for a shrinking one Indeed that measure is unattainable in a growing epidemic, but shrinking it should have been the first target. That some states are moving away from a 5% positivity target is just the symptom that those (mostly Republican) states have failed at achieving the purpose of the lockdown and are still months away from being able to implement contact tracing.