> Or energy; The sources of which being vastly composed of fossil fuels. But we can choose to change this. This is too often presented as though it's inevitabl

> Or energy; The sources of which being vastly composed of fossil fuels. But we can choose to change this. This is too often presented as though it's inevitable but it isn't, we went from "This can't work in theory" to "OK it works in theory but can't work in practice" to now "OK it works in practice but it's too expensive". Fossil fuels aren't magic, if we actually wanted Crude Oil we could make it, we don't, but the "Without fossil fuels there is no plastic / fertilizer / etc. is fear mungering, we can just make these things. As you explained the matter is right here already, we're standing on damp rock, which if you wanted uh, water or rock means you couldn't come to a better place. If you need Helium, yeah, that's not great, making Helium from scratch is relatively difficult, but the vast majority of things we need but are today made from fossil fuels, including jet fuel, fertilizer, plastics we could make with things we didn't dig out of the deep Earth if we use energy to make them. It's not impossible it's just expensive, and last I checked Mother Nature didn't invent money, that's our fault - so expensive isn't even a real problem, we made it up.