In 2012, Ohio State College professor Hugh City[157] asserted that Hubbard experienced adopted a lot of his theories through the early to mid 20th century astral projection pioneer Sylvan Muldoon stating that Hubbard's description of exteriorizing the thetan is amazingly identical Otherwise just like the descriptions of astral projection in http://narconon93321.worldblogged.com/8509632/a-review-of-al-ron-hubbard