If they are estimates, it's not at all unreasonable to see the number go down or up.

But in any case, the CFR estimates are also changing as a function of learning more about how to treat, and hospital capacity relative to caseload.

I was replying about the "let it rip through the population" scenario, without slowing it down, which basically means don't treat the majority of severe cases in hospital (because the hospitals would be totally overwhelmed in that scenario). The CFR would be higher.