Is our world a simulation? Why some scientists say it's more likely than not

A swath of technologists and physicists believe that 'simulation theory' will be proved, just as it was proved that the Earth was not the center of the universe

When Elon Musk isn't outlining plans to use his massive rocket to leave a decaying Planet Earth and colonize Mars, he sometimes talks about his belief that Earth isn't even real and we probably live in a computer simulation.

"There's a billion to one chance we're living in base reality," he said at a conference in June.