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The tesseract concept

In the novel the concept of a tesseract functions more or less like what in modern science-fiction is called a space warp or a wormhole, a portal from one area of space to another which is possible through the bending of the structure of the space-time continuum. A similar concept occurs in Frank Herbert's Dune novel where it is called the Holzman effect. However, in formal math, a tesseract is a four-dimensional structure similar to a three-dimensional cube, or a two-dimensional square. Such a structure simply presupposes four dimensions of space, but implies nothing about bending the structure of space.