Raging innumeracy of the Covid kind.

So if the small pox vaccine is 80% effective and 100 people go to the store, 20 people will leave with small pox. Got it.

— Ryan Grim (@ryangrim) April 11, 2021

FROM THE EMAIL: Hari succinctly highlights the problem:

For every 100 people who fly, 100 could die in an airplane crash.

The word "could" carries all the weight.