Question: is ditto a failed mew?
Answer: Ditto is a SUCCESFUL clone of Mew. It's been well established that Ditto and Mewtwo are both clones of Mew. Usually, Ditto is considered to be a failed attempt, while Mewtwo is what the scientist were aiming for, more or less. ... The only truly thing unique about Mew is its ability to transform into other Pokémon.