Board Thread:Naruto Discussions/@comment-46214474-20200629021640/@comment-32685487-20200701181355

Sasuke was literally figuring out how his eyes ability worked as he used them, and later after the war he figured out his eye also has a Space Time tech thats different from that one too. Madara not only had a name for his tech, but he knew exactly how it worked(nothing was a surprise about it to him and he didn't comment saying so either). So Madara not only knew how Limbo worked beginning to end but he called it by its name as if he used it before. Clearly he used his eyes a good bit before transplanting them into kid Nagato.. while Sasuke was learning his eyes ability for the first time and there are even panels showing him comment on it. Madara had practice with his Rinnegan eyes.