## Answer D1 # The Simulation Start Time: The Big Bang, 13.8 billion years ago ## Discussion In this scenario, the simulation started at the point in time that we call the Big Bang. A point in time when all matter in universe seems to be contained in a very small region of space, that was possibly a singularity, and beyond which our understanding of the universe breaks down. ## Question * [[D - When did the simulation start?]] ## Other Answers * [[D2 - Within Human Civilisation]] * [[D3 - Within Lifetime]]