In the philosophy of time, four dimensionalism is the view that reality is a four-dimensional continuum composed of time and space (spacetime). The principal argument for four dimensionalism is the Rietdijk-Putnam argument. The philosophy of time is a topic of philosophy that includes aspects of both epistemology and metaphysics. ... In physics, spacetime is a mathematical model that combines three-dimensional space and one-dimensional time into a single construct called the space-time continuum, in which time plays the role of the 4th dimension. ...
References
Four Dimensionalism. M.C.Rea. The Oxford Handbook for Metaphysics. Describes four dimensionalism.
The half radii of two one dimensional circles from different relations form the third triangle, whose hypotenuse is the radius of a fourdimensional sphere.
The orientation is a function of the four radii, not the eight representatives of the four dimensions.
Fourdimensional topology provides four, which are easily reduced to three, two and one (the sphere).
The fourdimensional sphere is a unique object, with properties both similar to and surprisingly different from those of our ordinary sphere.
In contrast to the ordinary sphere, it is possible to "comb the hair" on the fourdimensional sphere.
In particular, to give you an idea of the new dimensions in hairstyle available in fourdimensional, note that there is more than one way to divide all the "hair" into two sections, i.e.
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