Life can go back to normal if we make it our common goal to achieve herd
immunity

   We have a relatively clear picture of who is at risk. Let's isolate
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   difficult decisions. Mathematical models can be very useful in this
   regard, and these are all built on the premise that recovery from
   infection leads to immunity (not necessarily lifelong).

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   The build-up of “herd immunity” simply describes the ecological process
   by which immunity accumulates in a community to the detriment of the
   pathogen; it does not contain any implication or acceptance of culling
   those who are vulnerable to disease. To steer a population towards high
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   pathogen; it does not contain any implication or acceptance of culling
   those who are vulnerable to disease. To steer a population towards high
   levels of herd immunity is a sustainable public health goal upon which
   we have relied to manage a very large catalogue of infectious diseases.

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   we have relied to manage a very large catalogue of infectious diseases.

   While we remain uncertain about levels of herd immunity that have been
   attained to SARS-CoV2, we do now have a relatively clear picture of who
   is vulnerable to severe disease and death upon infection.
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   those who are at high risk may be shielded to varying degrees over the
   period (a maximum of six months) it takes to acquire sufficient herd
   immunity while the majority of the population conduct normal lives –
   thereby protecting the whole community from the devastating effects of
   lockdown.
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   Such inequalities will only be further exacerbated by endless cycles of
   lockdowns and other restrictions aimed at keeping “case” numbers low.
   Once sufficient levels of immunity have built up in the population such
   that the overall risk remains low (and this may already have happened
   in many areas), life can go back to normal for everybody.