You might want to look at Simplex to describe better and more rigorously. Simplex is the most basic structure to describe a space in n-dimension. 0-simplex: a

You might want to look at Simplex to describe better and more rigorously. Simplex is the most basic structure to describe a space in n-dimension. 0-simplex: a point. 1-simplex: a segment (points and lines) 2-simplex: a rectangle (points, lines, and surfaces) 3-simplex: a tedrahedron (points, lines, surface and a 3D space that most of human can comprehend visually) 4-simplex: everything above and the whole combination of these element in algebra. This is how mathematician and physicists solve problems. Time is a separate element in our equations that why we often talk space-time, not just space https://en.wikipedia.org/wiki/Simplex https://en.wikipedia.org/wiki/Simplex