Board Thread:Theories and Speculation/@comment-25645405-20150802055003/@comment-4646462-20150815033242

When even the creator himself says that there is no known way to defeat the main villain, there's a big problem. Madara became too powerful for Kishimoto to write up a way to properly defeat him. Thus, the massive asspull named Kaguya was born, and she was made weak so Naruto and Sasuke can easily defeat her so that both that and the fight between Naruto and Sasuke can be shoved in before the 700th-chapter mark. Quality writing.