The idea that reality might be a computer simulation has moved from philosophical thought to scientific discussion. Advances ...

In the most talked-about film from the final year of the 20th century, "The Matrix," a computer hacker named Neo finds that the world he lives and works in isn't real. It's a virtual reality, created ...

What if our 3D reality is a projection from a 2D surface? Part 2 dives deeper into string theory's claim of 10 hidden dimensions and the radical idea of an infinite cosmos where duplicate Earths and ...

Physicists have long struggled to explain why the universe started with conditions suitable for life to evolve. Why do the physical laws and constants take the very specific values that allow stars, ...