sixth most subscribed channel in the world. Other promotions, such as All Elite Wrestling, Major League Wrestling, Impact Wrestling and the National Wrestling Alliance have distributed their own weekly programming on the platform. Study and analysis With its growing popularity, professional wrestling has attracted attention as a subject of serious academic study and journalistic criticism. Many courses, theses, essays and dissertations have analyzed wrestling's conventions, content, and its role in modern society. It is often included as part of studies on theatre, sociology, performance, and media. The Massachusetts Institute of Technology developed a course of study on the cultural significance of professional wrestling, and anthropologist Heather Levi has written an ethnography about the culture of lucha libre in Mexico. In the early 20th century, once it became apparent that the "sport" was worked, pro wrestling was looked down on as a cheap entertainment for the uneducated working class, an attitude that still exists to varying degrees today. The French theorist Roland Barthes was among the first to propose that wrestling was worthy of deeper analysis, in his essay "The World of Wrestling" from his book Mythologies, first published in 1957. Barthes argued that it should be looked at not as a scamming of the ignorant, but as spectacle; a mode of theatric performance for a willing, if bloodthirsty, audience. Wrestling is described as performed art which demands an immediate reading of the juxtaposed meanings. The logical conclusion is given least importance over the theatrical performers of the wrestlers and the referee. According to Barthes, the function of a wrestler is not to win: it is to go exactly through the motions which are expected of him and to give the audience a theatrical spectacle. This work is considered a foundation of all later study. While pro wrestling is often described simplistically as a "soap opera for males", it has also been cited as filling the role of past forms of literature and theatre; a synthesis of classical heroics, commedia dell'arte, revenge tragedies, morality plays, and burlesque. The characters and storylines portrayed by a successful promotion are seen to reflect the current mood, attitudes, and concerns of that promotion's society and can in turn influence those same things. Wrestling's high levels of violence and masculinity make it a vicarious outlet for aggression during peacetime. Documentary filmmakers have studied the lives of wrestlers and the effects the profession has on them and