I envision a world where cities have become green havens - smart, sustainable and friendly to all. There are no more traditional roads in the city centre - instead, there are floating cabs and self-driving bikes that run through green tunnels made of trees and climbing plants. Vertical farms on skyscrapers

It would be just very nice if in the near future people could live together without selfishness and preconceptions.This would make it impossible to wage war because if what is mine is also yours there is no need to kill each other for more. There would also be no need to always focus on appearance because seeing the good in everyone would make sure that no one judged others, and conversely, no one would need to build walls to defend themselves from the malevolent gaze of others.

Electric vehicles have been abandoned. There are no more child laborers on the sites where the materials needed to make batteries are extracted. There's no more toxic waste from the end-of-life of these batteries. We're back to thermal engines, but using a vegetable fuel, to hydrogen engines, and to atomic fragmentation engines. As the earth revolves around the sun on an oval circuit, it is now on a point less close to the star, and climate change is less obvious. But fears of change have had some interesting effects. We're more attentive to environmental issues

The smell of fresh coffee wafts through the air - kitchen nanobots know exactly when I'm up. The city is silent, hovering vehicles glide silently over the streets, because internal combustion engines only exist in museums. As I leave the apartment, the climate is more balanced than it was thirty years ago. In 2025, we were still dealing with more extreme storms and heatwaves year after year, but since then the world has taken the fight against climate change seriously. Cities are greener, buildings are covered in plants, and energy is entirely from renewable sources.Humanity has learned to live sustainably, and now we are looking not only to the future of the Earth, but also to the path to the stars. One thing is certain: between 2025 and 2050, there will have been many challenges, but our choices have paid off. Humanity has not only survived, it has thrived - towards a better, more conscious world.