I'd like to get a consensus of feelings/insight as to what posters would require as the probability level of the occurrence necessary of discrete random events before they would agree that these "random" events are not impossible.
So that says that "impossible" is entirely subjective and entirely open to the [non-objective] opinion of the individual wishing to support a position.
Of course the truly impossible is entirely subjective and at the mercy of individuals advancing opinions. That is the realm to which impossible things are relegated.
Impossible things do not occur in objective reality; so where else?
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Eternal vigilance is the price of knowledge. - George Santayana