i think since superman gets his powers from the sun it should literally be photosynthesis and he should be a weird plant man who has comedy alien gimmicks like sprouting flowers from his head when he's happy or eating a spoon of fertilizer for breakfast
- Krypton was in the solar system, just past Mars - Blew up 1 billion years ago, leaving the real asteroid belt - Kal-El's ship was a stasis pod - Explains yellow sun powers (too close) & why Fortress at North Pole