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

For years, the idea that reality might be a sophisticated computer program has drifted from late-night dorm debates into mainstream culture and serious philosophy. Now a new wave of theoretical work ...

Physicists have spent decades arguing over whether our universe is a fundamental reality or a kind of cosmic software, and the debate has just taken a sharp turn. A group of researchers now say they ...

File this one under "fun to think about, probably not changing your day job": a new study just dropped that suggests gravity itself might be the smoking gun that our entire universe is one big ...