The Quirk One for All combines a quirk that stores power and a quirk that can be passed on. Izuku currently has the power and experience of eight previous One for All users, meaning the Quirk grows stronger with each generation. At some point in the very far future, does this mean that One for All will become so powerful, that no one can handle ALL of its power? We already know that it's so powerful now, that a new user can break his limbs off using it. How about in the future, when say 20 more people have passed on the Quirk? Even with training, will the power of this Quirk be too much? Will future users be limited to using a fraction of its power?