Abstract
Enthusiasm cannot be interpreted as a single emergence of a giant craze but as a chained emergence of crazes. I make an artificial society through computer. The society consists of agents who adopt a style sensitively or carefully (This model is called “Genesis Model of Enthusiasm” or GE model). I will show the emergence of enthusiasm on the computer and derive a scenario of enthusiasm from the observation of a number of simulations. From the observation, it is assumed that formation of group of those who adopt a style sensitively can trigger enthusiasm. Next, focusing on the history of juvenile delinquency, I will demonstrate that there has existed the phenomenon, in the history of juvenile delinquency, which is similar to the phenomenon mentioned above.
