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Metaphysics is a branch of philosophy concerned with explaining the essence of things, of the fundamental nature of being and the world and the principles that organize the universe. Metaphysics is supposed to answer the question "What is the nature of reality?"

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Karl Popper, in my version of the book as a footnote in that same section, explains: an isolated existential statement is never falsifiable; but if taken in context with other statements, an exi …
answered May 6 '13 by ntett