Hmm.. Kind of cool, but at the same time kind of lame because they could have introduced this whole 5 element crap at the beginning of Naruto instead of 300+ chapters later?

And yeah... This whole learning thing makes training with Jiraiya seem pretty pointless...

And yeah what mage said.. Kishi probably just made up this bullshit along the way.... it's getting really dumb if you ask me...