Although there are many ways of describing cybernetics, it boils down to a system of thinking about various systems, how they work, their constraints and possibilities, as well as their structures. In scientific terms, it usually means thinking about ways in which systems, or machines, interact with people – and sometimes animals, too. One of the key things to take on board about cybernetics is that it gets into many, many fields of human research including – but not limited to – mathematics, sport science, engineering, management systems, psychology, engineering, education and even, in some cases, art. In fact, because it often factors in diverse phenomena, such as communication, biology, mechanics and social systems, there are few areas of academic research where it cannot be applied. Although Plato first used the term, it became more widely used in the twentieth century.