A computer simulation or a computer model is a computer program that attempts to simulate an abstract model of a particular system. Computer simulations have become a useful part of mathematical ...

Is your life really your life, or is it actually the dream of a butterfly? Or is it a complex computer simulation indistinguishable from “real” reality? Don’t worry, it’s just a glitch in the Matrix.

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