I think the parent comment is relevant to the extent that controlling spread is a consensus problem. E.g., if I knew that a variant will be endemic unless 90%

I think the parent comment is relevant to the extent that controlling spread is a consensus problem. E.g., if I knew that a variant will be endemic unless 90% of a community follows certain practices, but 40% state they won't comply, that matters. If nothing else, it makes it seem pointless for me to bother wearing a mask for others' protection.