The Simulation Argument is an online resource curated by philosopher Nick Bostrom, bringing together his original paper on the possibility that we live in a computer simulation and the debate it has inspired. The site presents the argument’s central claim: at least one of three possibilities must hold—that humanity is unlikely to reach a posthuman stage, that posthuman civilizations are unlikely to run many simulations of their evolutionary history, or that we are almost certainly living in a simulation.

Visitors can read the original paper, published in Philosophical Quarterly in 2003, alongside an FAQ, popular explanations, interviews, podcasts, and video discussions featuring Bostrom and other commentators. The collection also links to scholarly papers that critique, develop, or apply the argument, covering topics such as simulation risks, virtual reality, cosmology, and the problem of evil. By organizing these materials in one place, the site helps readers explore the philosophical debate from multiple perspectives. It is an informational and educational resource rather than a commercial product or service.