Just out of curiosity, how would one go about creating carbon steel, composed primarily of iron, out of sand composed primarily of silicon? Nanotech has many possibilities, but unless I've overlooked something alchemical transformation of elements isn't one of them.
Ross A. Finlayson wrote:
> I think one proof-of-concept machine that makes carbon steel structural
I-> > beams out of sand on-site will be plenty to kickstart plenty of
investment.