Re: Source of Madara's Power
According to Tobirama's justifications, the greater the love.... the greater the hate produced by the loss of that love.
That is exactly why Hashirama said that he dared even say that Madara's love for his younger brother was even greater than Itachi's love for Sasuke. According to the Senju brothers, Madara became impossible to reason with after he lost his brother.
To answer your questions:
- Honestly, I dont know. But I'll guess that it takes a whole lot more hate/loss to activate a MS than a normal sharingan.
- Different people experience the same events differently. Simply put, some people are just more sensitive to certain events than others. I've seen people throw tantrums over the exact same experience I've easily shaken off in the past. Madara's brother died and his clan forsook him. He obviously took it really, really badly.
On the other hand we have Itachi who's a bit more reserved and wiser than Madara and a who enjoys battle a whole lot less than Madara. So, Itachi's probably more emotionally equipped to keep "the Curse" at bay. Also, Itachi loved his brother and the Village more than anything. Unlike Madara, he manage to protect both, from within the shadows.