In today’s New York Times, John Tierney discusses an argument by Nick Bostrom, director of the Future of Humanity Institute at the University of Oxford, that our existence could be nothing more than a computer simulation being run by posthumanists.
Dr. Bostrom assumes that technological advances could produce a computer with more processing power than all the brains in the world, and that advanced humans, or “posthumans,” could run “ancestor simulations” of their evolutionary history by creating virtual worlds inhabited by virtual people with fully developed virtual nervous systems.
Some computer experts have projected, based on trends in processing power, that we will have such a computer by the middle of this century, but it doesn’t matter for Dr. Bostrom’s argument whether it takes 50 years or 5 million years. If civilization survived long enough to reach that stage, and if the posthumans were to run lots of simulations for research purposes or entertainment, then the number of virtual ancestors they created would be vastly greater than the number of real ancestors.
The article includes links to four others related to Bostrom’s argument, and there’s a lengthy discussion going on at the TierneyLab blog. Also, see my recent post about the philosophy of The Matrix.