The problem is that with something as contagious as Omicron, if you reduce transmissions by 10 or 20% you don't really do anything, everyone will get it either

The problem is that with something as contagious as Omicron, if you reduce transmissions by 10 or 20% you don't really do anything, everyone will get it either way, at best you bought a few days. So you need a materiality threshold.