Aluminum giant Alcoa has announced a new way of producing aluminum sheet, called a Micromill. The eye opener is that they claim that the process time from when they melt the alloy constituents until the sheet is done has been reduced from 20 days to 20 minutes. Along the way, they get improvements in the sheet's characteristics: it's got 40% greater formability, and is 30% stronger.(Underline added). Wow!