According to Savater’s Book, our world can be divided, theoretically, into some smaller worlds; starting with our small world where we live the common life including the places and friends, then, the community of the city where you are; continuing with the national and international part, then going on to the planet Earth and the Solar system. Then comes all the others things like the galaxies, systems, stars, black holes, etc. everything included in this immense place whose limits are unknown, and that we call Universe; which is very controversial, because there are many things we don’t know about it, like if it is finite or infinite? I think right now it is quite impossible to know this.
I think it is a very interesting form of dividing the World, and that it is indeed true; because we are conscious of the world closer to us, and not about all the things that have happened, happen, and will happen in other countries; only some of the things because we saw or heard them. It is like the expression “He lives in his own world”, that means he is not conscious of what is happening around him, only what he is thinking.
This was just theoretically, because when we are traveling or moved to live at another place, our small world moves with us, and everything in the scale changes. It would be difficult to move a world don’t you think? So, it is just theoretically.