My novel-in-progress, Red Soil Through Our Fingers, takes place in a farming settlement that is part of a Mars colony. As I wrote Draft Zero, there was a lot of handwavium going on with respect to various technical details — the focus on just finishing the story. Now that I’ve progressed about a quarter of the way into Draft Alpha, I’m needing to clean up some inconsistencies and gaps. Today I figured out a piece of the story world that is good for me to know as I construct the novel, but probably won’t make it explicitly into the next of the work: how various molecules necessary for both human life and agriculture are going to be circulated on this Mars colony.