Reality+
Reality+ (2022) is Chalmers's most ambitious application of philosophy of mind to the technologies reshaping human life. The central thesis is that virtual realities are genuine realities: experiences in simulated environments are real experiences, virtual objects are genuine objects, and a life lived substantially in virtual worlds can be a life well lived. The argument has consequences well beyond the VR headset: it bears on how we think about large language models, about digital experience generally, and about the simulation hypothesis.
In the AI Story
The book develops what Chalmers calls virtual digitalism: the view that virtual objects are digital objects, and digital objects are real. The view rejects the common intuition that the virtual is inferior to, or derivative of, the physical. A virtual tree is not a fake tree; it is a different kind of real tree, made of bits rather than atoms.
The framework's consequences for AI are substantial. If digital processes are real processes, then the processing of a large language model is a real cognitive event in the world, not a mere simulation of one. This does not settle whether the processing is accompanied by qualia — that remains the hard problem — but it clarifies that the reality question and the consciousness question are distinct.
For readers of the Orange Pill, Reality+ provides the metaphysical frame within which the collaboration with AI can be taken seriously as a real engagement with a real partner, whatever the partner's phenomenal status turns out to be. The book insists that dismissing the collaboration as not really real rests on an outdated metaphysics.
Origin
Reality+: Virtual Worlds and the Problems of Philosophy was published by W.W. Norton in January 2022, bringing three decades of Chalmers's work in philosophy of mind to bear on the metaphysics of virtual worlds.
Key Ideas
Virtual realities are genuine realities. Digital is a way of being real.
The simulation hypothesis does not undermine meaning. Even if we are simulated, our lives are real.
AI processing is real processing. Not mere simulation of thought.
Traditional dismissals of the digital rest on outdated metaphysics. Bits can constitute reality.
Appears in the Orange Pill Cycle
Further reading
- David Chalmers, Reality+: Virtual Worlds and the Problems of Philosophy (W.W. Norton, 2022)
- Nick Bostrom, Are You Living in a Computer Simulation? (2003)
- David Chalmers, The Virtual and the Real (2017)