We have millions of cars, planes, rebar, jewelry, bullets, boats, phones, wires, etc. How is there still metal being made? Are we projected to run out anytime soon?
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Because you are underestimating how gigantic the planet really is, and some of these metals like iron and aluminum are among the most abundant elements on earth.
Go to Google maps and search Manhatten, which is arguably one of the most dense areas of metal and other stuff. Once you are there, slowly zoom out and take note of just how tiny it is compared to earth. Then remember these mines are deep. So it isn’t a square mile of iron mine. It might be multiple cubic miles for a given mine.
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