Cynicism is warranted for the reason that the other commenter pointed out: the fossil fuel industry (and by extension, any Big Industry) will use moonshot ideas like this as ammo for their PR machine. "Don't worry about our lobbying against viable solutions right now - soon we'll have this new silver bullet idea." That sort of thing.

But it's definitely worth exploring those moonshot ideas, so I'm not shutting that idea down. It's just good to be aware of how these sorts of headlines are used in the service of greenwashing.