How do we know that most of an atom is empty space? And since that is so, why can’t we just walk through solid objects?
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Not a physicist or philosopher. But was under the impression that this “atoms are mostly empty space” is a kind of conceptually wrong way of looking at things
What we know of as “non-empty space” (solid matter) is a deep-seated intuition based on the way particles interact. Which is entirely about electrical forces of particles acting on one another. There is no “solid stuff” in any other sense of the word, so the intuition essentially kind of breaks down at the microscopic scale
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