As previously noted in this series, our entire world may be simulated. For all we know we’re sitting on a powerful supercomputer somewhere, the mere playthings of posthuman intelligences. But this is not the only possibility. There’s another way that this kind of fully immersive ‘reality’ could be realized—one that doesn’t require the simulation of an entire world. Indeed, it’s quite possible that your life is not what it seems—that what you think of as reality is actually an illusion of the senses. You could be experiencing a completely immersive and totally convincing virtual reality right now and you don’t even know it.
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