I Come from a Higher Civilization

This is an Earth in a parallel world, an Earth with hydrogen-based life. What can an engineer from a higher civilization do when he travels here? Regarding this question, Lu Yuchuan was very excited: "Every time I just tell the truth and do what I would do, they say I'm pretending!" Reporter: "I just received a complaint from the public that you were speeding 200% over the speed limit on the highway. Are you driving or flying a plane?" Lu Yuchuan: "Uh... I'm just looking for the feeling of flying a spaceship." Reporter: "Last month, Asia's largest nuclear power plant was completed. How should we choose between nuclear dye waste pollution and energy utilization?" Lu Yuchuan: "Wait a minute, can't nuclear energy be used directly? What's the point of converting it into electricity?" Reporter: "May I ask how you, who originally had an inaccessible physique, managed to successfully symbiote with hydrogen-based life and gain powerful cloud power?" Lu Yuchuan: "Isn't time travel always set up like this? In the early stage, I pretend to be a grandson and in the later stage, I become an uncle. Otherwise, wouldn't my death have been in vain?"