We also do take notice when more mundane exponential threats crop up -- for instance, the R0 of measles is something like 12-18 (compared to a "measly" 2-2.5 fo

We also do take notice when more mundane exponential threats crop up -- for instance, the R0 of measles is something like 12-18 (compared to a "measly" 2-2.5 for the novel coronavirus, or 1.28 for the typical seasonal flu), and when it got out of control in a few cities in the US last year, it was a Big Deal even though most people are vaccinated for it.