The simulation hypothesis—the idea that our universe might be an artificial construct running on some advanced alien computer—has long captured the public imagination. Yet most arguments about it rest ...

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

The idea that reality—the universe, our world, and everything we perceive—is a simulation has fascinated philosophers and scientists for millennia, but new findings suggest that the theory, despite ...

Multiple-choice exams measuring the breadth of students’ content knowledge have hardly disappeared. But the creators of a leading international exam, the U.S. government agency behind “the nation’s ...