Humans have been around for a LONG time. When we learned to make fire, we’d encircle it with rocks. Some rocks would have a vein of copper or tin ore in it. The next day you’d look at the fire and see this weird bit of melted metal that wasn’t there before.
Then just sort of playing around and harnessing it and trying to replicate it.
I remember reading a theory that king solomon’s mines was really just an area where there was a copper vein but it was essentially exposed to the surface. So functionally a mine you didn’t have to do any real digging for.
So find an area with a ton of copper, setup camp and make a shitload of arrow heads, knives, axes, what the fuck else are you gonna do you’re a caveman. Then you’ve got a bunch of nifty shit to trade.
Not exactly better than rock, but once rock breaks it’s essentially done. Copper could at least be reformed after the fact.
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