Physicists say they may have evidence that the universe is a computer simulation.
How? They made a computer simulation of the universe. And it looks sort of like us.
A long-proposed thought experiment, put forward by both philosophers and popular culture, points out that any civilisation of sufficient size and intelligence would eventually create a simulation universe if such a thing were possible.
And since there would therefore be many more simulations (within simulations, within simulations) than real universes, it is therefore more likely than not that our world is artificial.