*Marcel Duchamp, although cited with other avant-garde artists who created a stir with art outside cultural traditions, did so for reasons that are the diametric opposite of Outsider Art intent. Duchamp is considered the father of Conceptual Art, a highly intellectualized approach to art in which the aesthetic object is far less important than the idea behind it.
Artists included but not discussed - Bill Traylor, Simon Sparrow, Martin Ramirez
What do you think? Why is Joseph Cornell, who also isolated himself, was self-taught and created singular, obsessive work, considered an Insider instead of an Outsider? Why is Modigliani, who made his sculptures from stolen paving stones and couldn't give away his art for most of his life, an 'Insider' instead of an 'Outsider?' Do labels help or hinder our understanding and experience of artists and their art?