Could we be trapped inside a simulated reality, rather than the physical universe we usually assume? It’s a tantalizing theory, long theorized by philosophers and popularized by the 1999 blockbuster ...

In an essay for The Conversation, physicist Melvin Vopson of the University of Portsmouth in England laid out the theory behind his simulation test, which builds on the idea that a “simulated universe ...

Is gravity created because we're in a simulation? The double slit experiment and linear models show that particles can change back in time when someone observes it.