In recent years, however, Hogan's preferred theories have tended towards those widely considered "fringe" or pseudoscientific. He is a serious proponent of Immanuel Velikovsky's version of catastrophism,[2] of creationism over Evolution,[3] and of the theory that AIDS is caused by pharmaceutical use rather than HIV (see AIDS reappraisal).[4] While such theories may seem to contradict his views on scientific rationality, they are consistent with the view that scientific theories should not be accepted simply because they are widely held (see, for instance, argument from authority). Hogan has also espoused the idea that the Holocaust didn't happen, writing that he finds the work of Arthur Butz and Mark Weber to be "more scholarly, scientific, and convincing than what the history written by the victors says."[5]