This is a great followup to the steel issue raised by Gates discussed earlier here. https://news.ycombinator.com/item?id=20813496 https://news.ycombinator.com/i

This is a great followup to the steel issue raised by Gates discussed earlier here. https://news.ycombinator.com/item?id=20813496 https://news.ycombinator.com/item?id=20813496 It seems like the carbon cost for creating this stuff might be much less.