Our world is huge. Its boundaries are impossible to know. We humans must think about our place in this world. Where are we going? We are part of the universe, and caring for our future is caring for the future of the whole world. Earth is our home. And how our descendants will get it depends on us. Every new day gives us the opportunity to write the history of mankind. When thinking about what our world will be like in a year, a hundred or a thousand years, we must ask ourselves another question: what are we making it like? For the cover and illustrations in the book, fragments of images from the pixabay website, edited by the author, are used.