Originally posted by transio
Hitler was not a product of a universal government. Let's take example of successful world government into account: The Roman Empire.
There has been no such thing as a universal world government before. The roman empire was no such thing -- if you think so you are too western centric.

The point about Hitler is that he was elected and proceeded to persecute members of the electorate. With a single world government, we would be just as vulnerable to a single bad meme, embodied in an individual or a group, it doesn't matter. All it takes is the right conditions and people will be glad to murder each other in the name of authority. With distinct nations, it is possible for one or two to "go bad" while the rest maintain their sanity.

As for hedge funds getting out of control, that is something made far, far easier by a linked global economy. Again, you were the one who mentioned the Euro as being a good thing, that is an example of why not. If you wish to admit that a single tightly linked global economy is not such a good thing, then go ahead.