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magduf
|
5 years ago
Correlation doesn't guarantee causation, but the Asian countries where mask-wearing has been commonplace for a long time have done far, far, far better with this pandemic than nations where no one wears masks in public.
zinclozenge|5 years ago
This is a vacuous statement in this context and adds nothing to the discussion, because you can never prove causation via a study/experiment, only reject the null hypothesis.