If by medium size your thinking ~1km^2 then sure. But, much smaller than that yo...

		Retric on Oct 24, 2018 \| parent \| context \| favorite \| on: Carbon Removal Technologies If by medium size your thinking ~1km^2 then sure. But, much smaller than that you you start talking about billions of these things. Keeping them properly aligned and not shading each other would be a non trivial challenge.