dropdeadfred, Some 2500y ago most people thought the world was flat. Some, who likely vote Republican still believe the world is flat. Thanks muchly to ancient Greeks, by the end of the Middle Ages most Europeans believed the earth was spherical. Today some Republican voters still believe the earth is flat.
A couple of years ago not much at all was known about the virus. About a year ago many would have hoped a vaccination would prevent one from catching covid. Biden's comment would have been based on the best expert evidence he had then. Today many conservatives still preach the vaccines have been a failure. You are one of those.
Not sure how you feel about the shape of the earth.
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