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 ...

As I mention often on this blog, I have a great interest in the universe—astrophysics, quantum mechanics, cosmology, all that stuff. With that, I’m no expert in any of it. I just enjoy reading and ...

The idea that reality might be a kind of cosmic software has shifted from late-night dorm debate to a live question in physics and philosophy. A growing body of work now treats the “simulation ...