very small guy idea

big boy idea: carbon overhaul

bigger man idea: element overhaul

co2 from fusion is kinda dumb, indestructible diamonds makes even less sense, it'd really just make more sense to have the 10 most common elements in a few fields (universe, earth's crust, electronics, life, etc.) + their common allotropes & compounds (+ a few variants for silicates such as glass, sand & quartz). The genericization isn't great for industrial contexts, nor for balancing & designing.