Coronavirus I could be wrong (no shit), but don't we end up with the same number eventually infected whether we isolate or not? — Hanover
No. Herd immunity requires infecting at least 60% of the population. You do the hammer and the dance and it's a lot less even when spread out over time, especially because you hope for a vaccine. In China, they're looking at less than 1% even long term. That's what we should be aiming for and is in line with what the US is looking at, 2-3 million infected and about 100,000 deaths in the near term, maybe a little more in the long term, but certainly way below herd immunity figures.
Check out the link I shared earlier, which describes the US's current strategy and projects no new deaths at all by mid-July (which implies new infections tending to zero).
https://covid19.healthdata.org/projections
With herd immunity you'd be (deliberately) getting lots of new infections all year and beyond.
The better question is whether you want more preventable deaths or not. Would you shut down the economy like we've done to save a single person? Probably not. 1m people? Probably so. Now we just need to figure out the specific number we can let die. It's somewhere between 1 and 1m, but it is a number. Do you acknowledge we agree in principle that there is such a number and our only quibble is what that actual number is? — Hanover
The absolute critical number you want to be below is ICU respirator capacity. Because after that you won't be able to even offer treatment to a proportion of patients who need it, who will then be guaranteed to die. That number presumes you don't go the herd immunity route. And it's also less than what we're guaranteed in the US right now. So, yes, it's impossible to save everyone, but I would say you are obliged to try to maintain numbers low enough that give you a fighting chance of at least being able to treat everyone. Some level of economic shutdown is required for that.