The 'You're a Wizard, Harry!' meme stems from the pivotal scene in 'Harry Potter and the Sorcerer's Stone' where Rubeus Hagrid tracks down Harry to deliver his Hogwarts acceptance letter. The line, famously delivered by Robbie Coltrane, represents a life-changing epiphany for the protagonist. In internet culture, the template is used to jokingly 'reveal' someone's true identity or to introduce someone to a niche community or hobby. It often features misheard dialogue, such as the popular 'You're a lizard, Harry' variation, or substitutes 'wizard' for modern professions like 'coder' or 'crypto trader.' The meme thrives on the nostalgic contrast between Hagrid's earnestness and Harry's bewildered expression.