Mankind began as a troop animal.
Living amongst its own kind.
Stepping out of the trees onto the Savanna.
Mankind became a wander, small family bands bound by blood. Millenia past, mankind developed farming and the wanderer settled down. Small wandering groups became small farming villages. Small farming villages became larger farming villages, then small towns.
Small towns became larger towns inhabited by hundreds.
Larger towns grew to small cities inhabited by thousands. Agriculture and technology developed to sustain and enhance such growth. Cities evolved into city states, then becoming small countries inhabited by hundreds of thousands. Finally today we have countries inhabited by hundreds of millions.
All along this path battles and wars, killing millions along the way, till today we have weapons that can wipe out us all.
The salvation of mankind and the natural progression of things is global organization, global integration.
The globe is being wired with its own global neural net, a global brain if you will. One world controlling itself.
One world that will not nuke itself! The salvation of us all.