With new developments at Oculus VR and its competitors, virtual reality is hurtling toward becoming a larger part of our life experiences. Strap on an immersive device, the device promises, and be transported to a different world.

As Vanity Fair’s Max Chafkin found while reporting his deep dive into Oculus and the company’s founder, Palmer Luckey, and C.E.O., Brendan Iribe, the company indeed plans on revolutionizing entertainment and digital media—resulting in a multitude of interesting potential outcomes.

At last year’s New Establishment Summit, SpaceX and Tesla C.E.O. Elon Musk considered the effects of the emerging technology. “It’s quite transformative,” Musk said. “You really feel like you’re there, and then when you come out of it, it feels like reality isn’t real.”

“I think we’ll see less physical movement in the future, as a result of the virtual-reality stuff,” Musk said.

As video games get more lifelike and incorporate technologies such as haptic suits, Musk noted, “it becomes, beyond a certain resolution, indistinguishable from reality.”

The entrepreneur and futurist then offered a twist: “There are likely to be millions, maybe billions of such simulations. So, then, what are the odds that we’re actually in base reality? Isn’t it one in billions?”