After a long 7-year journey packed with 95 explosive episodes, the hit sci-fi anime on Crunchyroll, Dr. STONE, officially concluded on June 25.
The final episode not only solved the greatest mystery of the entire series but also delivered an epic twist, reinforcing the timeless message about the limitless progress of science.
1. The Mystery of the “Mastermind” on the Moon Revealed
As the spring anime season came to a close, fans bid a bittersweet farewell to Dr. STONE since its debut in July 2019. Over multiple seasons, the final arc took genius scientist Senku and his allies into space, landing on the Moon to uncover the origins of the petrification disaster that struck humanity.
In a shocking twist, the series revealed that the “Why-Man”, actually the petrification devices called Medusa, are a form of parasitic artificial intelligence (AI). Their goal in turning humans to stone was to seek maintenance and worship to extend their own lifespan.
However, negotiations between Senku and these entities ended with the AIs deciding to abandon Earth, deeming humanity too foolish and uncooperative. Still, one Medusa core was swayed and stayed behind after hearing an unbelievable proposal from Senku.
2. An Unexpected Twist: The Ambition to Build a Time Machine
Senku’s proposal to the petrification device was to build a time machine. This caught fans completely off guard. Throughout the story, Dr. STONE was known for its realistic science approach, applying real-world principles to rebuild civilization from the Stone Age to modern times. Introducing time travel seemed like a wild departure but perfectly aligned with Senku’s ideals.
Senku’s ultimate goal from episode one was to save everyone turned to stone and bring them back to life. Creating a time machine to go back and stop the initial blue light petrification is the only way to fulfill this mission.
Yet the show wisely ends with Senku just beginning his research instead of immediately building the device. This open-ended finale leaves a thrilling question: will Senku succeed, or are the Medusa actually future beings who traveled back in time?
3. A Symbolic Message: Science Has No Limits
Leaving such a monumental invention “in progress” carries deep symbolism. It shows that humanity’s scientific journey never truly ends and that there are no limits to new discoveries.
Additionally, the true creator of the Medusa remaining a mystery hints that the vast universe still holds civilizations far beyond humanity’s reach.
After 7 years of ups and downs, Dr. STONE found a near-perfect conclusion. Though the series has ended, the passion for science that Senku inspired in fans will continue to burn bright, securing its place as one of the greatest sci-fi anime of all time.