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Old 03-25-2020, 06:29 AM   #177 (permalink)
Dent
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Trump and Hillary won the election

https://medium.com/@alexvikoulov/the...r-79b697a5179d

Back in 1961, the Nobel Prize–winning physicist Eugene Wigner devised a thought experiment that exposes one of the most notorious paradoxes of quantum mechanics. The “Wigner’s Friend” experiment demonstrates how the same quantum mechanical principles applying to the quantum domain and to the Universe at large allow two observers (Wigner and Wigner’s friend) to experience alternate realities that are forced to coexist. In their paper, Experimental Rejection of Observer-Independence in the Quantum World, Massimiliano Proietti at Heriot-Watt University in Edinburgh, UK, with collaborators attest that they have performed the first real-life experiment that proves the Wigner’s gedanken experiment: They have created different, conflicting realities and compared them. And their conclusion is that Wigner was correct — these realities can be made irreconcilable so that it is impossible to agree on the objective status of the facts about an experiment.
Wigner’s original thought experiment goes like this: It begins with a single polarized photon that, when measured, can have either a horizontal polarization or a vertical polarization. But before the measurement, according to quantum mechanics, the photon exists in both polarization states at the same time — a so-called superposition. Wigner imagined a friend in a different lab measuring the state of this photon and recording the result while Wigner is unaware of that. For Wigner, the photon’s superposition remains factual, while Wigner’s friend measures which polarized state the photon is in, which forces it out of superposition and into a definitive state, and records the result without ever conveying this information to Wigner. They then compare notes and find that something very strange has then happened. At the exact same time, Wigner and his friend recorded two different versions of reality and they are both correct.
Experimental evidence confirming The Wigner’s Friend thought experiment, and with it confirming QM interpretations stemming from the Copenhagen interpretive camp, such as RQM and Qbism, has significant implications for how researchers may do science going forward. “The scientific method relies on facts, established through repeated measurements and agreed upon universally, independently of who observed them,” say Proietti. And yet in the same paper, authors undermine the infallibility of scientific method. With the scientific method and other alternative methodologies (like ‘quantum neo-empiricism’ from the book) we’re discovering the “rules of the game,” and knowing those rules well may be indispensable for further progression in the game.
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