"Headlong Hall" is an early 19th-century satirical novel by Thomas Love Peacock, first published in 1816. The narrative is set in the titular Welsh country house of Squire Headlong, an impulsive and hospitable man who invites a diverse group of guests to his estate. These guests include a mix of philosophers, scholars, and eccentrics, each representing different intellectual trends of the time. The novel humorously satirizes various contemporary philosophical viewpoints, from the pessimism of the "deteriorationists" who believe that the world is in decline, to the optimism of the "meliorists" convinced of continual progress. Additionally, the story features romantic entanglements and a lively depiction of Welsh scenery and customs. Peacock's work is notable for its witty dialogues, absurd characters, and the amusing juxtaposition of conflicting ideas. "Headlong Hall" is a playful critique of early 19th-century British thought and society, reflecting Peacock's sharp wit and his skepticism towards philosophical and scientific debates of his era.