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https://twitter.com/mgubrud/status/1404429983242756096First, we totally agree that the elimination of nuclear weapons is realistic & essential, and its achievement is mostly a matter of changing minds. We disagree slightly on the rhetoric that will be most effective in changing them. +
https://twitter.com/DrEricDing/status/1351688451884789765New variants which may be more infectious or resistant to immune response or treatment will spread into the population as if the older variants aren't there at all. The different strains are not in direct competition the way animal & plant populations are in the wild. +