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| Format: | Recurso digital |
| Langue: | anglais |
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2026
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| Accès en ligne: | https://doi.org/10.5281/zenodo.20077893 |
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| author | Hillard, Shane Life Sim Technologies, Inc., Amelia, Ohio, USA |
| author_facet | Hillard, Shane Life Sim Technologies, Inc., Amelia, Ohio, USA |
| contents | <p>1 Introduction<br> Why does space have three dimensions? The standard answer in contemporary physics is: it doesn’t have to. String theory produces10 or 11dimensions; the extra ones are compactified. Inflation could in principle populate dimensionalities different from three. The number of spatial dimensions is treated as a contingent fact about our universe, selected by initial conditions or<br>a landscape of possibilities, not derived from any deeper principle. This paper argues that the standard answer is wrong, or at least incomplete. Three spatial dimensions are not selected from alternatives. They are the unique dimensionality consistent<br>with the existence of the kind of persistent differentiated structure that any observer—any system capable of making distinctions that persist over time—must be built from. The argument proceeds in two steps. First, we define Persistent Differentiated Complexity (PDC): a minimal set of four conditions that a nyphysical system capable of sustaining distinguishable, stable, causally separable subsystems must satisfy. Second, we prove the biconditional:PDCholdsifandonlyifn=3. This is not an anthropic argument. The anthropic principle says: observers exist, therefore the conditions for observers are satisfied, therefore certain constants and dimensionalities are selected. That argument is circular and non-falsifiable. The PDC argument is different: it derives that onl yn=3 satisfies the conditions. There is no ensemble of universes from which three dimensions was elected. Three is the only answer.</p> |
| format | Recurso digital |
| id | zenodo_https___doi_org_10_5281_zenodo_20077893 |
| institution | Zenodo |
| language | eng |
| publishDate | 2026 |
| publisher | Zenodo |
| record_format | zenodo |
| spellingShingle | Three Spatial Dimensions as Physical Necessity (Paper 15 of the LQG – LQC Intertwiner Series) Hillard, Shane Life Sim Technologies, Inc., Amelia, Ohio, USA three spatial dimensions; PDC biconditional; persistent differentiated complexity; necessity; Huygens principle; atomic stability; Bertrand theorem <p>1 Introduction<br> Why does space have three dimensions? The standard answer in contemporary physics is: it doesn’t have to. String theory produces10 or 11dimensions; the extra ones are compactified. Inflation could in principle populate dimensionalities different from three. The number of spatial dimensions is treated as a contingent fact about our universe, selected by initial conditions or<br>a landscape of possibilities, not derived from any deeper principle. This paper argues that the standard answer is wrong, or at least incomplete. Three spatial dimensions are not selected from alternatives. They are the unique dimensionality consistent<br>with the existence of the kind of persistent differentiated structure that any observer—any system capable of making distinctions that persist over time—must be built from. The argument proceeds in two steps. First, we define Persistent Differentiated Complexity (PDC): a minimal set of four conditions that a nyphysical system capable of sustaining distinguishable, stable, causally separable subsystems must satisfy. Second, we prove the biconditional:PDCholdsifandonlyifn=3. This is not an anthropic argument. The anthropic principle says: observers exist, therefore the conditions for observers are satisfied, therefore certain constants and dimensionalities are selected. That argument is circular and non-falsifiable. The PDC argument is different: it derives that onl yn=3 satisfies the conditions. There is no ensemble of universes from which three dimensions was elected. Three is the only answer.</p> |
| title | Three Spatial Dimensions as Physical Necessity (Paper 15 of the LQG – LQC Intertwiner Series) |
| topic | three spatial dimensions; PDC biconditional; persistent differentiated complexity; necessity; Huygens principle; atomic stability; Bertrand theorem |
| url | https://doi.org/10.5281/zenodo.20077893 |