Theory: The One Piece is a Time Reset Device, and Luffy is a Reincarnation
Background Premise:The One Piece world is caught in an endless loop of history repeating itself. This cycle is governed by a mystical artifact known as the "One Piece," which is actually a device capable of resetting time back to a specific point in history.
The Void Century and the Device:During the Void Century, a highly advanced civilization discovered the secret to manipulating time. They created the One Piece as a fail-safe, a way to reset history in case of a cataclysmic event. However, fearing its misuse, they encoded the device to only activate under certain conditions and hid it at the end of the Grand Line.
Joy Boy’s Promise and the Ancient Kingdom:Joy Boy, from the Void Century, was actually a scientist from the ancient kingdom. He knew about the cycle and made a promise to the Fish-Men to break this cycle, using the Ancient Weapons to ensure that the One Piece could be used to create a permanent, positive change in the world, not just another reset.
The Will of D:The "D" in certain characters’ names signifies those who are inherently resistant to the effects of the time reset, retaining vague memories or feelings across cycles. They are drawn to the sea and the One Piece because, subconsciously, they know something is wrong with the world's timeline.
Luffy’s Role – A Reincarnation:Luffy is the reincarnation of a key figure from the Void Century (possibly even Joy Boy himself). His innate desire to be the Pirate King is more than just ambition; it's a deep-rooted need to fulfill a centuries-old mission.
The True History:The Poneglyphs don’t just tell the history of the Void Century; they also reveal the nature of the One Piece and its purpose. Robin's role in deciphering them becomes crucial to understanding how to use the One Piece correctly.
The Final War and the Reset:The series culminates in a massive war that threatens the world, making the use of the One Piece necessary. Luffy and his allies, including nations, other pirates, and revolutionaries, face off against the World Government and those who wish to use the One Piece for their own gain.
Breaking the Cycle:Luffy, upon reaching Raftel and discovering the truth, decides to use the One Piece to not just reset time, but to break the cycle altogether. This would create a new timeline where the world can progress without the looming threat of reset, bringing true freedom to everyone.
Aftermath:In the new timeline, the characters retain no memory of the previous cycles, but the world is inherently a better place. Luffy, not knowing why, feels a sense of fulfillment, as if he's completed a mission he wasn't even aware of.
Closing:The series ends with the Straw Hats continuing their adventure in this new world, with Luffy still as exuberant and free-spirited as ever, but now in a world where true history can be made without the shadows of the past.