In this five-minute video installment of Aeon in Sight, Nigel Warburton interviews the renowned Australian cognitive scientist and philosopher David Chalmers as he discusses the implications of virtual reality and how it reframes some of philosophy’s most enduring questions. VR is currently in its infancy, but in just a few decades it’s possible that virtual environments will be nearly indistinguishable from reality. Indeed, Chalmers cites Nick Bostrom, a Swedish philosopher who argues that it is actually probable that we are already living in a virtual reality created by posthumans running ancestor simulations. “Once you start thinking about it that way, what are the odds that I’m one of the lucky ones at level zero?” Chalmers questions. “It’s far more probable that I’m somewhere down in the hierarchy of universes. If so, I may be in a virtual reality right now.” Take a look at this short film for a more in-depth look at how VR is is shedding new light in the areas of cognition, epistemology and the nature of reality.