>As I have a degree in Political Science I would like to add a comment. What do we do with political parties? We can use yours or someone elses? :)

Personally, I find I have as much need for political parties than I have for a second head.

But in the short (or medium) term, a World Federation can be set up, where nations decide to cooperate, but each nation would be free to govern itself as it likes - with, or without, political parties.

Pressumably, since this is considered an accepted model, the World Federation would also have some sort of parties.

>The concept of community is fine and if we went to Mars you would find community to survive. As soon as survival was attained you would have one person or concept attempting to dominate everyone. I truely think that ego gets in the way.
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>The concept of a world at peace seems academic. You can argue or suggest a plan of action for attainment. I would suggest mankind cannot attain such a state. I believe the nature of man will not allow such an event.

It has been achieved before, on a lesser scale. There is no reason why it shouldn't be possible on a larger scale.

For example, nobody would consider the possibility of different states in the U.S.A. waging war against each other. While the internal situation in that country may not be ideal in every aspect, at least, the country can be considered as a unit.