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Questioner

I was wondering if the size of a piece of metal determines the amount of Feruchemical charge that can be stored in it.

Brandon Sanderson

Yes.

Questioner

So how does that scale, like, in terms of the volume or mass of the metal or...

Brandon Sanderson

It-- So I've talked about this before, I'm trying to remember exactly what I've told people-- It does not scale as logically as you think it does. How about that? It's more like certain thresholds. You can have a-- You can store a Hemalurgic or Feruchemical charge even in very small pieces of metal, but larger pieces of metal will let you get more.

Questioner

So it's kind of like there are different classes of sizes?

Brandon Sanderson

Yeah, kind of like that.

Questioner

If a coppermind was to be split in half, would the contents of it be destroyed? Or would there be, in the two separate halves, <of different contents?>?

Brandon Sanderson

You should err on the side of being destroyed, though not permanently, is what I would say on that. There are ways to approach it that wouldn't, but generally if you're ruining a metalmind, the Investiture will stay in it, and if you know what you're doing you can make use of that, but in most cases, it's not gonna fare well.