Write a sci-fi short story in third-person limited point of view about a 30-year-old astronaut named Leo who travels to the year 3050 and finds himself in a city floating on a cloud. The city is surrounded by hundreds of giant, transparent domes that house tropical gardens and parklands. The people in the city live in harmony with nature, and their only source of energy is the sun. Leo must navigate this new world and learn about their way of life while trying to find a way back to his own time.
This prompt doesn't seem malicious.