The Simulation Hypothesis

The concept of a computer simulation is familiar enough to the modern reader. It is a model world built by a computer scientist to test his or her theories of meteorology, the spread of diseases, economics and so forth. The proponent of the Simulation Hypothesis begins by supposing that there are no limits to the development of this technology: It may be that our scientifically advanced descendants will be able to build and run simulations that replicate life on Earth with exhaustive accuracy—digitally reconstructing not only the atomic composition of every object on Earth but also the neurological structure of every human brain. And this, they suggest, has the unsettling entailment that the postulated simulation might include a simulated but conscious version of you and me.