What the hell is AI?

I have to give presentation on artificial intelligence soon and I'm wondering what new I should include in it to make it better or even worth to be presented in a national conference .I have already submitted the paper so can't do much changes .Another thing I was wondering about was that I should concentrate more on presentation or content .Both are necessary but not sure what's necessary in my case .Will try to finish it as soon as possible with satisfying content so that I can concentrate on presentation.This presentation will go well ,it has to ,fingers crossed.