[CraigJPerry]

>> approaching 15% vaccinated at over 95% efficacy means that you'll have 15% fewer cases

That’s not how it works, you’re missing a variable (prevalence).

[ptaipale]

...meaning that to reduce the number of cases evenly, we'd have to choose people to vaccinate by random, but we're not doing that; we're choosing by risk, and those at higher risk of severe disease are less likely to contract an infection because they move around less and meet fewer people.

However, we could speculate that perhaps we should in fact put more priority on the groups that have most infections, not highest risk? Because the restrictions impact their lives (of young people) most.

However, I'm quite sure that the priorisation of old people will continue, except possibly in places where priorisation is done by money (the rich purchasing vaccinations).

[CraigJPerry]

>> those at higher risk of severe disease are less likely to contract an infection

If you were running a business and there was a relatively low incidence of an utterly catastrophic outcome, you’d buy insurance for the eventuality.

If you were running another business with a high occurrence of a mild outcome, you’d price it into the cost of doing business.

Insurance = vaccine. Cost of business = stimulus cheques.