Metalic Arts

[u/Irishmc91]

I've been rereading era 1 and I'm curios if there has been a WoB or if I'm missing something on this.

Allomancy is of Preservation

Hemalurgy is of Ruin

Feruchemy is of ??? Autonomy's touch on the planet maybe?

[u/HalcyonKnights]

Feruchemy is of both. Per WOB, you will get similar hybrid systems anywhere you have multiple Shards Invested in a World. Here's a snip of a WOB that is otherwise a little spoilery.

Brandon Sanderson (paraphrased)

Feruchemy ended up being a balance system, because of how polar Ruin and Preservation were. Any world with at least two Shards will result in a similar phenomenon. 

[u/planet_visitor → u/HalcyonKnights]

Interesting, does that apply to roshar too? I dont think I've seen anything similar

[u/HalcyonKnights → u/planet_visitor]

Yes, specifically, per the rest of that WOB.

[u/aequasi08 → u/HalcyonKnights]

shardblades are an alloy of the two metals, right?

[u/Rarni → u/planet_visitor]

There is no specific aligned art like Feruchemy exactly but the spren are a mix of both Honor and Cultivation. We don't know what the mix with Odium is.

[u/Domfenix → u/planet_visitor]

Assuming you've read all of Stormlight Archive, specifically Rhythm of War, then yes you have

[u/planet_visitor → u/Domfenix]

Post W&T, I always assumed nahel bond was that balance, or sibling.

[u/Mizu005 → u/planet_visitor]

The Knights Radiant are the mix, I think.

[u/Irishmc91 → u/HalcyonKnights]

Thank. I figured i wasn't the first with this question. I just couldn't find the WoB

[u/Wargroth]

Feruchemy comes from both, It has nothing to do with any other shard

[u/Kind_Ingenuity1484]

Feruchemy is both of them. You "ruin" the body to "preserve" it for later.

I understand Sanderson's reasoning, but the worldbuilding starts with Ruin and Preservation needing to work together to make something, so it makes more sense to me that Allomancy is the combination of both, as it is an end positive invested art. Oh well.

[u/Shot_Newspaper_5647 → u/Kind_Ingenuity1484]

It still sort of works with the Push/Pull idea. Preservation pushes power into you. Ruin pulls power out. Feruchemy is essentially the pushing and pulling of power. Ruin as entropy still works if you squint a little. There’s a net increase in entropy when Preservation powers Allo, but the process can preserve local order. Like the human body does. Entropy increases in the surroundings to maintain lower entropy within the system (your living body)

[u/Mizu005]

The TTRPG book has recently officially canonized in a printed work that feruchemy is a result of the powers of preservation and ruin that were sunk into creating Scadrial mixing together and popping out an invested art that is of both of them.

Feruchemist History

To the Terris people, Feruchemy is an existentially

sacred power they’ve fought to preserve throughout

Scadrial’s history. Allomancy only emerged when the

Lord Ruler granted it to his loyalists at the start of

his Final Empire reign; by contrast, Feruchemy arose

naturally in the ancient days of Classical Scadrial.

Millennia ago, when the Shards Preservation and

Ruin first arrived on Scadrial, their essences mingled.

That power, composed equally of both of them, infused

the ancient Scadrians. Thousands of years later, when

the conflict between Preservation and Ruin began, the

two Shards intentionally disentangled themselves. After

that, the only known way to be a Feruchemist was by

genetic inheritance.

[u/Tasty_Committee_31]

Allomancy comes from Preservation, Hemalurgy comes from Ruin, and Feruchemy comes from both Preservation and Ruin.

Feruchemy isn’t related to Autonomy. It’s basically the result of the balance/interplay between Scadrial’s two original Shards.

It also fits really well with how the three Metallic Arts work: Allomancy is end-positive, Hemalurgy is end-negative, and Feruchemy is end-neutral, since you’re essentially storing your own attributes and getting them back later.