I think the rule of thumb Vallance applied then was current deaths multiplied by 1000, per Neil Ferguson extrapolated from estimated CFR and growth rate.
Cool - means (taking this work at face value) it was a good rule of thumb.
They note in the paper that age of population is currently not being taken into account, but they aim to add it. That will be a fuck load of busywork, but it will be really interesting to see the impact it has.
I think the rule of thumb Vallance applied then was current deaths multiplied by 1000, per Neil Ferguson extrapolated from estimated CFR and growth rate.