It's a byproduct of aluminum production.

The earth's crust is 8% aluminum.

We will have bigger problems before hitting this one.

That’s still not running out. It’s still there, just more effort to get.

> On the other hand, it is possible to run out of a metal when all of it is either somewhere in some device or scattered among landfills

The metal isn't going to disappear, but it won't be concentrated enough to be as easily retrievable.

Its concentrated in a place like a landfill that already has access for large vehicles.