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What is matter? A question that has fascinated—and at times tormented—some of the brightest minds of the twentieth century. Max Planck, Albert Einstein, Niels Bohr, Erwin Schrödinger, Werner Heisenberg, Max Born, Wolfgang Pauli, and Paul Dirac all grappled with it, debating fiercely, colliding over equations and experiments, in their attempt to decipher the very essence of […]