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- 1Do Quantum Fields Count as Physically Real?●Quantum fields carry energy. Does that prove that they’re real? In quantum physics, we often argue over "what is real?"
Astrophysicist Ethan Siegel argues that quantum fields deserve to be considered real because they carry energy, giving them measurable physical consequences beyond mere mathematical tools. Writing for Big Think, he examines the long-running debate over what is real in quantum physics, including wavefunctions and eigenstates, and contends that energy is a compelling argument for fields' existence.