There are no objective facts in the world. This isn’t a statement about fake news. Rather, it is the implication of an experiment that suggests the nature of reality depends on who is looking.
The work is rooted in thought experiments about the nature of quantum mechanics, but this is the first time one has been done in the lab, with potentially profound implications. “I am very excited about it,” says theorist Carlo Rovelli at Aix-Marseille University in France.
The experiment, carried out by Alessandro Fedrizzi at Heriot-Watt University, UK, …
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