The Fourth Dimension is a philosophical and mathematical exploration of the concept of time and the existence of higher dimensions beyond our three-dimensional world. Written by P.D. Ouspensky, a student of the renowned mystic G.I. Gurdjieff, the book delves into the nature of reality and the limitations of human perception. Ouspensky uses mathematical and geometric principles to explain the idea of a fourth dimension, and how it might be experienced...