As people see the vaxxes failing to stop illness they are less and less likely to get boosters. I see that in my circle which is about half "vax enthusiasts" and half "reluctant vaxxers", of which I am the latter.

The reluctant vaxxers are far more likely to say "F*ck that" to the boosters.
There will be a hard core contingent of the enthusiasts that will take shot after shot, but with every subsequent booster that percentage will drop.

A lot of the vaxxed took the shot on the belief that it was sterilizing and life would "get back to normal". With neither belief turning out to be true, that % of the vaxxed are unlikely to keep getting boosters.

IMO we're going to eventually limp toward herd immunity the hard way.

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"The closer you get to the drain, the faster you spin."
---some rando on ZeroHedge