Having a thing that makes nice big carbon structures from atmospheric carbon would be nifty, though. People use wood for all sorts of things; being able to plo

Having a thing that makes nice big carbon structures from atmospheric carbon would be nifty, though. People use wood for all sorts of things; being able to plop a "seed" some place and come back in a couple seasons and have a structure made from sunlight, ambient minerals, and co2 from the air -- would be super cool. I still can't quite convince my kids or other people I mention it to -- hey -- this tree? Almost all of it comes from air and sunlight. I'm lucky to live near some really big, really old trees; they're quite obviously magical.