Triangles {2-simplex} have two dimensions and three lines/sides. Tetrahedrons {3-simplex} have three dimensions and four triangles/faces. Simplexes {4-simplex} can have four dimensions and five tetrahedrons/faces. 4-simplex connections dynamically determine number of space-time dimensions.
Space can be tiny causally-connected (over time) 4-simplexes {causal dynamical triangulation} (CDT). CDT allows only causally possibly configurations. CDT results in three large-scale spatial dimensions and one Planck-scale spatial dimension, making four space dimensions. CDT can account for all forces and particles.
If dynamical triangulation can be causal or non-causal, space has infinite dimensions or two dimensions.
Physical Sciences>Physics>String Theory>Brane
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Date Modified: 2022.0224