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Work #647 · Late (Chalmers's major popular-and-technical synthesis on virtual reality and the simulation hypothesis)

Reality+

David J. Chalmers
2022 · English
Philosophical treatise (popular-and-technical) · Analytic philosophy of mind / virtual realism

Virtual reality is genuine reality — the systematic philosophical defense of virtual realism

Attribute Fingerprint

Rows where works disagree are highlighted in gold. The full ontology grid is shown.

Attribute Reality+ (Late (Chalmers's major popular-and-technical synthesis on virtual reality and the simulation hypothesis))
Time · Extent Infinite
Time · Ontological Status Substantival
Time · Grain Continuous
Time · Freedom Deterministic
Time · Traversability Linear
Time · Dimensionality One
Time · Direction Uni-directional
Space · Extent Infinite
Space · Ontological Status Substantival
Space · Curvature Flat
Space · Dimensionality Three
Space · Locality Local
Matter · Extent Infinite
Matter · Ontological Status Substantival
Matter · Conservation Conserved
Matter · Dimensionality Three
Matter · Locality Local
Observer · Time Instance Multiple
Observer · Space Instance Multiple
Observer · Knowledge Extent Mediated
Observer · Knowledge Retainment Partial
Observer · Physicality Both
Observer · Agency Active
Observer · Number Plural
Observer · Metaphysical Agency None
Observer · Moral Authority Reason
Observer · Theological Method N/A
Energy · Extent Infinite
Energy · Ontological Status Substantival
Energy · Conservation Conserved
Energy · Dispersibility Irreversible
Information · Ontological Status Substantival
Information · Cosmic Conservation Conserved
Information · Personal Conservation Non-conserved
Information · Granularity Discrete

Dimension-by-Dimension Evidence

What each work's passages reveal about its stance on each of the six dimensions.

Time

Reality+

Standard physical time; virtual environments may have their own simulation-clock time.

Space

Reality+

Substantival physical space; virtual environments instantiate structured spatial properties in a computational substrate.

Matter

Reality+

Substantival matter at the substrate level; structured-patterns at the virtual level are equally real.

Observer

Reality+

Plural embodied observers; multi-instance through VR; mediated knowledge through immersion.

Energy

Reality+

Standard physics at the substrate; computational energy in virtual environments.

Information

Reality+

Discrete digital information as the substrate of virtual reality.

Internal Tensions

Where each work's argument pulls against itself.

Reality+

Virtual-realism's claim that simulated experiences are "real" is contested from both common-sense and traditional-philosophical sides. Critics argue that the reality of the substrate is one thing and the reality of the simulated content another. Chalmers's response — that what matters is structural-functional realization, not substrate provenance — is a non-trivial philosophical commitment that the book defends across hundreds of pages but doesn't close the debate.