'Indistinguishable from reality': Elon Musk says we're probably living in a simulation – here's the science

In a recent interview at the Code Conference in California, technology entrepreneur Elon Musk suggested we are living inside a computer simulation. On first hearing, this claim seems far-fetched. But could there be some substance to Musk's thinking? As founder of a number of high-profile companies, such as Tesla and Space X, Musk's business interests lie firmly in leading technologies. Key to his claim is that computer games have evolved rapidly over the past 40 years to the point that, inside the next few years, they will be fully immersive, with a computer-generated and controlled world seamlessly merged with the physical world.