The step onto another planet begins the end of our own world. We have to see each and every country as a small part of our earth, which means that if we try to continue our economy as it is, we will not only waste all of our resources but will destroy the so called economy system, that keeps our world i motion.
Think about the following example:
We produce a good and sell it for a higher price than its production costed. Think that every person in the world would do the same, where do you think the money comes from to pay the product : The answer lies near, but is quite hard to get to: We take from each other and cause some of those human beings to live in poverty. At the beginning the small and poor countries will be trapped on and their economy will become useless to an extent where those people, who want to survive will produce their own goods to keep themselves alive, they won't take part in any kind of economy, because for them economy is the root of their poverty. After the county itself doesn't take part in the wordly economy system and still functions on its own as a agricultural 'piece of land', other countries will become victims of the world wide economy system. This kind of cycle continues till one last country destroys its own economy and one 'man', stands at the top of the economy, money and wealth will be 'him', but as he won't know, at that point money will loose any worth and value, because humanity will stand again at its beginning, where such as money doesn't exist, but only farmers who try to survive on their own. So the development of a new world will be at its beginning and people(s) will try to develop a economy system, which is doomed to fail once again.
Think about it....