A physicist has mounted one of the most detailed technical challenges yet against the idea that our universe is a computer simulation, arguing that the energy required to run such a program would ...

Spoiler: You are not living in a simulation. Advanced simulations have been the subject of fiction from The Matrix to the season two episode of The Twilight Zone (2019), “Downtime.” As our real-world ...

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 ...

Curious Kids is a series for children of all ages. If you have a question you’d like an expert to answer, send it to CuriousKidsUS@theconversation.com. Is the whole universe just a simulation?