A physicist has mounted one of the most detailed technical challenges yet against the idea that our universe is a computer simulation, arguing that the energy required to run such a program would ...

Few scientific ideas have leapt from philosophy seminars to dinner-table debates as quickly as the claim that our universe ...

How certain are you that the world around you — as you perceive it — both exists and is quote-unquote real? Nothing in your subjective experience can validate this belief. Elon Musk, on Wednesday, ...

In this year’s Code Conference by Recode, Elon Musk, the CEO of SpaceX and Tesla Motors, was asked by journalist Josh Topolsky about whether he has considered the idea that we might be merely existing ...

Philosopher Nick Bostrom’s famous Simulation Argument suggests it’s highly probable that we live inside a supercomputer. But one philosopher takes this hypothesis to task, arguing in a new paper that ...

Some things you can see directly, like your fingers. Other things, like your chin, you need a mirror or a camera to see.