system
Given the following post, respond as if you're commenting on Reddit:
human
Will we ever run out of iron to make steel?

I've been somewhat paranoid about this recently. Steel is one of the most crucial parts of society and without it the industrial revolution would have ended fairly quickly.

So, if we keep developing and urbanizing as we are now, will we ever run out of iron to make steel?
gpt
It's very unlikely as Iron is one of the most abundant elements in most planets as it's one of the most common byproducts of fusion in the massive stars that planets form from after they explode. Earth contains so much Iron, about 1/3 by mass, that we simply can't realistically use it all.