A new research paper reframes the simulation hypothesis, asking whether reality could be simulated and what science can test.

Gravity used to be the most down-to-earth of ideas, the thing that kept apples falling and planets in line. Now a growing ...

The idea that reality might be a kind of cosmic software has moved from late night dorm debates into serious physics journals ...

The best theory physicists have for the birth of the universe makes no sense. It goes like this: In the beginning—the very, if not quite veriest, beginning—there’s something called quantum foam. It’s ...