Anyway the first thing you can figure out is how fast the stuff spreads so plots like this probably aren't complete ass pulls.

Under a scenario of 90% population immunity against previous variants, we get the following picture where Omicron could lie anywhere along the dashed line ranging from an intrinsic R0 of 3 and 83% immune escape to an intrinsic R0 of 9 and 20% immune escape. 14/18 pic.twitter.com/nh2CzoL0L4

— Trevor Bedford (@trvrb) December 1, 2021

But anything about severity is stage two:

Wouldn't want to make the Dow cry by closing airports.