> We can't possibly know For that to happen, COVID would have to either kill nobody in 2020 so it could continue that in 2021, or abruptly stop killing people

> We can't possibly know For that to happen, COVID would have to either kill nobody in 2020 so it could continue that in 2021, or abruptly stop killing people in 2021 (by what mechanism?) as soon as vaccines were rolled out anywhere (but not in places where they weren’t rolled out, how would it know?), and all vaccines would have to have the same effect despite working in different ways.