That would be revolutionary, I don't think there's been a time in history where the entire world has been at peace. Honestly, I don't think its likely this could ever happen. the world is just too culturally diverse for something like that to happen. I think peace for the world would be good, but i'm not sure how it could get this way. Already most countries are having internal battles with themselves, so how can a world be at peace, if a country alone cant do it. For example in the United states, we seem like a world superpower, but most of its people are divided. Its Democrats VS Republican, Pro-Choice VS Pro-Life, Homophobia VS Non- Homophobic. There is so many things that divide Americans i could go on for days. So if the world can get passed the problems of everyday life, maybe we could be at peace, but i doubt it could ever happen.