Maier was untrained, but her images are artfully framed and detailed So much has been accomplished by those who were "untrained, but". I wonder if that says as much about the training as it does about the accomplishments.
It reminds me of the sculptor who said that he wasn't making the sculpture. "It's already in there. I'm just removing excess material." Sometimes I feel that our brains are like that. That some of our abilities are inherent. They just have to be set free.
http://www.paulgraham.com/ideas.html [Section: 'Problems']
( embarrassed to admit I probably have a complete cross reference of his essays in my brain :) )