Most vegetation is made out of air and water. Mostly air. C, O, and N come from air. H comes from water, and some of that comes from water in air. The inputs from dirt are under 5% of plant mass. They have to be, or farms would dig holes in the ground.
Feynman talk on this.[1]
So, with that out of the way, what does this company actually have?
* They have a cool web site with no useful info.
* They have another web site with useful info.[2]
* You can't even order samples of the product.
* They have a useful Wikipedia article.[3]
* It's a fermentation process, so it takes heat and water, not just air.
* They've been around since at least 2019 and have burned through about $20 million in funding.
* None of their PR discusses cost of the product.
[1] https://www.npr.org/sections/krulwich/2012/09/25/161753383/t...