Apparently some people think that Aluminum comes from the Aluminum fairy, and have no idea how it is produced. Clue: A large amount of electricity is applied to molten refined Bauxite, which contains Aluminum oxide ore. It is a very energy intensive process. Even re-smelting recycled Aluminum takes considerable energy.
And Gallium is a toxic substance, if I remember correctly.
"A large amount of electricity is applied to molten refined Bauxite, which contains Aluminum oxide ore. It is a very energy intensive process."
Just ask the Bonneville dam during WWII. Bonneville dam - Alcoa - Boeing - Bombers - WWII won.