One thing I've been doing is going back and taking notes for my critique on the series, one thing I remember was that Kishimoto was incredibly inconsistent on just what the origin was for the Sharingan, like, apparently it's the power of hate that fuels it, but then, Kishimoto had the Second Hokage say that it's not hate that powers the Uchihas, it's love, they love so much with wounds that will not heal... (man, that was awkward). The Sharingan is one of the most bullshit power-ups in manga and anime history, it pretty much does whatever Kishimoto needs it to do, even if you don't have it, Madara doing a Susanoo without his eyes even though it's established that you NEED the Sharingan to be able to do a Susanoo, but not Madara, oh no. He gets to just do it when he has no eyes. Ugh....