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New Quantum Physics Experiment Suggests Objective Reality Doesn't Exist Alternative facts are  spreading like a virus  across society. Now it seems they have even infected science – at least the quantum realm. This may seem counter intuitive. The scientific method is after all founded on the reliable notions of observation, measurement and repeatability. A fact, as established by a measurement, should be objective, such that all observers can agree with it. But in a paper recently  published in  Science Advances , we show that, in the micro-world of atoms and particles that is governed by the strange rules of quantum mechanics, two different observers are entitled to their own facts. In other words, according to our best theory of the building blocks of nature itself, facts can actually be subjective. Observers are powerful players in the quantum world. According to the theory, particles can be in several places or states at once – this is ca

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