physical, if we give the word “physical” its proper meaning. As the word is used casually, ordinarily, inexactly, it means only what is accessible to our senses. But our senses select arbitrarily. Is space a void or a substance? This is debated. If antimatter should cross the little margin of relative scarcity that allows matter to exist, Being would be gone in the blink of an eye, solid Mars extinct as the dream I might have had the next night. But who has any conception of antimatter? These are conditions for the existence of everything we call physical, and we don’t know what they are. Like
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