Yes, because you're autistic...No because thats how i approach most of everything interesting to me. Whether it be religion, history, language, science, music, movies, games, books, places, etc.
Obsession is typically negative connotation. A man and woman in love exhibit the same basic traits of obsession just its considered acceptable when its desired by the recipient. Its called obsession typically when its considered unhealthy fixation. I dont think my approach to learning things is unhealthy fixation.
My approach to fiaxating on women who dont want to talk with me may be considered unhealthy fixation though