The question of whether we live in a real world or a simulated one has plagued philosophers for centuries - but now scientists believe they finally have found a way to test the theory.
Professor Silas Beane, a theoretical physicist at the University of Bonn in Germany said that his group of scientists have developed a way to test the 'simulation hypothesis'.
The idea has been debated by the greats of philosphy, from Plato to Descartes, who speculated that the world we see around us could be generated by an 'evil demon'.
The successful film franchise, The Matrix, also helped spawn the idea that what we think is our everyday life is in fact a simulation generated by an all-powerful computer.
But now more than two thousand years since Plato suggested that our senses only give us a poor reflection of objective reality, experts believe they have cracked the riddle.
Professor Beane told Radio 4's Today programme that his proposal could be the beginning of a new period of discovery.
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