In a new paper, researchers from the University of Innsbrück in Austria say they've proved that two realities can exist at once, at least when it comes to the quantum world.

The implications of the study not only confirm the long-discussed experiment, but challenge the foundation of how observations are made.

'The scientific method relies on facts, established through repeated measurements and agreed upon universally, independently of who observed them,' say Proietti in the paper published in pre-print journal AirXiv.

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