There's an interesting tidbit within the 0B-1 and NKN fan theory that has seeped its way into "Star Wars" canon. The theory proposes that cloning Force-sensitive beings is incredibly difficult and that only a mere few of the Jedi clones could actually wield the Force — 0B-1 and NKN being two of them. Having perfected Jedi cloning, the Emperor hoped to use the technology to create a Force-sensitive army to take over the galaxy. The Emperor's cloning exploits became a focal point of the non-canon print story "Star Wars: Dark Empire" from the 1990s before making it to screens big and small.
The Emperor's fascination with cloning is a central element of "Star Wars: Episode IX – The Rise of Skywalker," which reached the silver screen two decades after the prequel trilogy began. After his death in "Star Wars: Episode VI – Return of the Jedi," it's revealed that he survived in secret on Exegol using an imperfect clone body. As "Star Wars: The Bad Batch" and "The Mandalorian" further explained, the Emperor and his scientists had been working on cloning Force-sensitive beings since the end of the Clone Wars era, further tying this decades-old theory to the modern "Star Wars" canon.
At the end of the day, this theory may seem a bit far-fetched given what we know about the Clone Wars and the younger years of Obi-Wan Kenobi and Anakin Skywalker. Then again, as "Dark Empire," "The Rise of Skywalker," and other pieces of media have shown, elements of some fan theories — no matter how weird — can indeed make it into the official canon.
