The chaos theory is a mathematical concept that studies and describes how chaotic and unpredictable behavior can arise from simple and deterministic rules. It was first introduced by French mathematician Henri Poincare in the late 19th century and has since become an area of intense research and analysis. The chaos theory has been applied to many different fields from economics to biology and even psychology. One of the most famous applications of the chaos theory is the butterfly effect, which states that a small change in one part of a system can have a huge effect on the system as a whole. In other words, a butterfly flapping its wings in one part of the world can cause a tornado in another part of the world. For this reason, the chaos theory has become a popular motif in tattoos.