The butterfly effect is the concept that small causes can have large effects. Initially, it was used with weather prediction but later the term became a metaphor used in and out of science. The butterfly effect is all the more pleasing because the computer model that led to its discovery resembles a butterfly. The mathematician Edward Lorenz created the model, called a strange attractor, in the 1960s; it’s a line that alternately spirals around two adjacent ovals, mapping out the chaotic solution to a set of interrelated equations. This video tries to explain if the butterfly effect is real or not.