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General Reddit 2016 ()
#101 Copy

Rogaen

What would happen if a Feruchemist fills, for example, a tin metalmind then mixes it to make a pewter metalmind? Does the stored attribute change? Is the Investiture gone when you melt the metal? What if he just makes it into a tin metalmind again?

Brandon Sanderson

If you make it impure, you'll keep the investiture, but won't be able to get it out. If you make it back into the same thing, you'll be fine, and can access it normally. If you try to fill it, after changing the composition to make another viable metal, it will act a little like a computer hard drive with corrupted sectors. Some of it will work for the new investiture, but you won't be able to fill it nearly as full. (Depending on how full it was before you melted down.)

This holds for basic uses of the metallurgic arts. Once you start playing with some of the more advanced parts of the magic, you can achieve different results, which are currently RAFO.

eSPiaLx

Similarly, if you were to soulcast a metal would it have similar effects of corrupting the investiture and making it inaccessible? Like if you turned a steel metalmind into pewter.

Brandon Sanderson

I've stayed away from soulcasting and forging in these types of discussions, as I feel my answers will dig too deeply and prompt more questions that, eventually, will lead to lots of RAFO type questions. I don't really want to go there--but I will say this. Changing invested objects with other magics is hard, and often requires such a force of investiture yourself, that it becomes very power-inefficient. Just like we can technically turn lead into gold right now--by spending way more money than the gold is worth.

BipedSnowman

So you could, for example, use electrolysis to dissolve a metalmind in water, then reverse the reaction later to get the investiture?

OR, better question, if you store investiture in one allotrope of iron, can your retrieve it off you change to a different allotrope?

Brandon Sanderson

I see no reason why these wouldn't work.

dce42

So would forging with the blood of a radiant(kaladin, dalinar,etc) work on a shard blade from a fallen radiant to say change who they had bonded, or how the bond was broken (to say death instead of giving up on the oath)?

Brandon Sanderson

RAFO.

Calamity Philadelphia signing ()
#102 Copy

f***yeahdiomedes

What limits are there on how fast someone with steel Feruchemy can go? Like is it more based on the limits of what the body can survive?

Brandon Sanderson

Yes, I will dig into that eventually because I actually have to run the math and just decide. It’s certainly, *pause* there are hard, very hard limits, let’s just say that. But the body generally is...I fudge Feruchemy a little bit, where I allow the body to adapt to what it’s doing for most Feruchemy. Otherwise I just couldn’t use it for very much.

Oathbringer release party ()
#103 Copy

TheFulgid

Could you Invest... Could you use a nicrosil metalmind to Invest the sort of Investiture enough that you could open a Perpendicularity up to the Cognitive Realm?

Brandon Sanderson

So, I'll just say it this way. Enough concentrated Investiture in one point is going to pierce the Realms, no matter what form it takes. 

TheFulgid

...So, it doesn't have to be a nicrosil metalmind.

Brandon Sanderson

No. 

TheFulgid

Okay... But it could be?

Brandon Sanderson

Yes. That is theoretically possible. 

Mistborn: The Final Empire Annotations ()
#104 Copy

Brandon Sanderson

Chapter Twenty-Two - Part One

Feruchemy. Some like the word, others aren't as happy with it. It used to be called Hemalurgy, but I decided that would be a better word for the third magic system in the series. (You'll see it eventually.)

Feruchemy (not called that, however) was a magic system I lifted from Final Empire Prime, a book I wrote some years before I wrote this book. I had a person who could store up attributes, such as strength, then use them when he needed them. The thing is, the magic wasn't really that well formed, and this character never got any viewpoints, so I didn't get to use the magic as often as I wanted.

When I was developing this world, I knew I wanted the Keepers to have the fantastic memories. I realized that Feruchemy would make the perfect magic system for Sazed and his people. When I decided that I could use metals as a focus for this magic system (something that made it much more interesting, because it put a definable limit on what could be stored and how much of it could be stored) I knew I had something really good.

I like to use multiple magic systems in books, but I like it when they all have common elements. Feruchemy and Allomancy are like different aspects of the same concept. They both do some similar–yet different–things. There will be a lot more about this in the text.

/r/books AMA 2015 ()
#105 Copy

Argent

Why is it that Allomancers and Feruchemists get either one or all of the powers? Radiants / Surgebinders being limited to two Surges makes sense, because it depends on the type of spren they bond with, but Allomancers?

Brandon Sanderson

I'm not ready to answer this one yet, I'm afraid. So it's a RAFO.

Argent

Fair enough. Is this something we'll see explored in future (far future?) books, or will we need to bug you about it during signings / AMAs every few years?

Brandon Sanderson

It will explored in far future books, most likely.

The Hero of Ages Annotations ()
#106 Copy

Brandon Sanderson

The Inquisitor's Speed

What the Inquisitor does here at the end is very important. If you've read book two recently, you may recognize this as what Sazed did when he tapped speed at the end of that book.

The Inquisitors are gaining Feruchemical powers, which makes them very, very dangerous. Mixing Feruchemy and Allomancy is what made the Lord Ruler so formidable. Fortunately, it took him a long time to figure out how to mix the powers correctly, and the Inquisitors haven't had the time to practice, regardless of the force controlling them.

Worldbuilders AMA ()
#109 Copy

Bat_Mannington

If a Windrunner lashed Wax upwards, could he dump all of his weight into his metalminds and be unaffected or would the lashing affect his clothes and whatever else he had on him too?

Brandon Sanderson

Wax could mitigate the effect (unless he was in a vacuum) but not eliminate it completely.

faragorn

Vacuum or freefall?

It can be easy to confuse them in the context of surface to orbit.

Brandon Sanderson

I was talking about a Vacuum, but it's good to clarify. What I'm saying is that without wind resistance, his mass doesn't matter--and the books have established that what Wax does is a freakish transformation of his mass, not just his weight.

Kaladin changes how much gravity pulls on someone, and in what direction. Wax (basically, it's more complex than this) changes how much mass he has. The two, then, have some very distinctive effects.

Prague Signing ()
#111 Copy

Paleo

Do you actually store something related to...do you store the actual attribute or do you only store like an Investiture representation of an amount...

Brandon Sanderson

You store the Investiture representation.

Paleo

So the metal is just the focus that says this will turn into this.

Brandon Sanderson

Yeah.

17th Shard Forum Q&A ()
#112 Copy

Satsuoni

How is heat a mental attribute in Feruchemy?

Brandon Sanderson

Because I messed up. I don't know if I've mentioned this before, but that power was supposed to be swapped with another one. (You might be able to guess which one.) However, by the time I realized my mistake, it had already been canonized in print in the trilogy, so I was stuck with it. I've been tempted to go back and correct the error, but it reaches pretty far back. People drawing upon warmth is mentioned in the first book. One thing to keep in mind, however, is that in general the 'physical, mental, etc' things are applied by people--they are boxes that people investigating the magic have used to describe it.

Arcanum Unbounded release party ()
#113 Copy

Djarskublar

So, say you have a gold/gold Twinborn and they worldhop to Roshar and they study the magic and do the whole Khriss and Nazh thing for a while so they know a lot about the magic, but they've also left themselves a lot of options with what they can do. So then they manage to pull up a gold shadow of them having actually become a Surgebinder and then kind of meld themselves with that shadow a bunch, could they change their Cognitive Identity enough so that they could, like, tap a lot of gold and grow the spren and actually be a Surgebinder?

Brandon Sanderson

Unfortunately, no. It's a good question, but no. That won't work for a couple of reasons. One of which is, simply creating Investiture is not something that can happen, right?

Djarskublar

They are a gold Twinborn, so they can tap a lot of gold...

Brandon Sanderson

They can tap a whole bunch, that's true, they can do that, but simply having it is not gonna create a spren because the spren is from a different god, right, a different Shard.

Djarskublar

So if they had Regrowth cast on them, would that do it?

Brandon Sanderson

*hems and haws for a second*

Djarskublar

A really, really big Regrowth, like in the middle of a Highstorm.

Brandon Sanderson

Hmmm, this, you are getting to the realm of plausibility at that point. I still don't think gold is the way to do it. I think you just get all that Investiture. It would become sapient by you sticking a whole bunch of Investiture in, and then you can bond to that. But it's not like people gain what you would have done. Does that make sense? That's just what's going to happen, is you're gonna, you can create a, potentially create a spren that way, but you are more likely to end up with something like Nightblood. But you could potentially create a spren, but I mean you're just gonna end up...

Djarskublar

So there are other, more optimal ways to do that?

Brandon Sanderson

Yes, go bond a spren. (evil grin of course)

Djarskublar

But you can't easily bond multiple, and if you did this you could maybe get multiple.

Brandon Sanderson

Nyeaaahhh... The spren still has to choose. If you want to be a Surgebinder, the choice is being made. You can't fake your way into it. Decision and Honor are too much a part of Surgebinding for you to be able to fake your way into that. Other magics you might be able to do that. Other magics that don't require, like... Surgebinding works because a piece of Honor or Cultivation or a mix has chosen you specifically. There is will from the actual Investiture involved in it in Roshar. So it's not something you can cheat your way into, right. But cheating your way into Breath might be easier.

DragonCon 2019 ()
#114 Copy

DoritoJH

So, AonDor is super versatile and powerful.

Brandon Sanderson

Yes, but region-locked!

DoritoJH

Yes, it is region locked, exactly. If a full Feruchemist using nicrosil were to create an unlocked medallion that allowed an Elantrian to store Connection to Elantris' location, would it let them use AonDor at full power as long as they were tapping that Connection?

Brandon Sanderson

Yes. That should work just fine.

...

Just understand that the medallion's going to have to be usable by everyone in order to work. You're going to have to jump through some hoops, but I think what you want there would work. And for those of you listening, that would be the harder way to unlock AonDor. There are easier methods.

Orem signing ()
#115 Copy

Mason Wheeler

It seems that taking something metal that is Invested and melting it down, and reforging it, does not destroy the Investiture in it. For example the spike that got turned into a bullet.

Brandon Sanderson

Well, and the-- yeah. There are other examples as well.

Mason Wheeler

If that doesn't ruin its Invested nature, what would happen if Wax were to take one of his ironminds, have that melted and alloyed into steel, and then tried to burn it?

Brandon Sanderson

So you are saying mixing in-- right. Um, this would probably not work. But I'd have to go to the document on this one, because I've theorized in it. So I'm going to say probably won't work, but I have to go to my document, so Notes And Find Out. As soon as we get into the really detailed-- One of the things I want, even when I was building the Mistborn magics, is I wanted it to get really complicated. Because, my philosophy was making a wheel is easy to understand what's going on. Making a car uses all the same physics and simple tools, but is infinitely--well, you know, not infinitely--hugely more complex. Making a spaceship goes beyond that. And I wanted when we dug into all the actual mechanics it all works, but it's like the difference between making an abacus and making a computer. And we're starting to stray-- not into computer-making realms, but starting tjo stray into combustion-making realms, and so these are the sort of things that I just can't talk about off the cuff as easily. Because I have this document and I'm like "this, this, this, this." Does that makes sense?

So I'm going to say that probably wouldn't work. I believe what is going to happen there is you're probably going to end up with one of these things where you see a reservoir there but you can't access it that happens quite a bit when things get muddled once you mix in other metals and things like that. But I can't give you 100% on that without the notes to double check myself.

Firefight San Francisco signing ()
#117 Copy

Questioner

What is Feruchemy, is it tied to any Shard?

Brandon Sanderson

Feruchemy, is it tied to any Shard in specific? Yes, they talk about that in the books.

Questioner

Ok, it's like, of Preservation?

Brandon Sanderson

Yes, you could say that.

Brandon Sanderson

Because it seems like one Shard, one magic system?

Brandon Sanderson

Here's the thing, it's more that-- They, in their philosophy, say that it's kind of a hybrid between the two, but you could kind of feel that it's more--

Questioner

It seems more Preservation.

Brandon Sanderson

It seems more Preservation, but in-world they think it's kind of a hybrid. The philosophy says that one was kind of net-positive, one was kind of net-negative and one was a hybrid. That's their in-world philosophy. I personally would place it more with Preservation.

Questioner

Ok so more than one magic system can be tied to one Shard?

Brandon Sanderson

Yes. 

Questioner

Ok, that's what I wanted to know.

Brandon Sanderson

Here's the thing, the definition of magic system can be, is so fluid. Like you can look at this book and say "how many magic systems are there?". Is Surgebinding one or is it ten?

Questioner

Allomancy's 16--

Brandon Sanderson

Is Allomancy 16 or one, and things like that. So yes multiple magic systems can be tied to a Shard.

Prague Signing ()
#118 Copy

Questioner

*translated* In Feruchemy, if someone's existence is being in--stored in it, is it as a whole?

Brandon Sanderson

It is little pieces of Investiture filtered through their mind and their soul. *waiting for translator* You could say it's a little piece of them, but it's not the whole them.

Mistborn: The Final Empire Annotations ()
#119 Copy

Brandon Sanderson

Those of you who have read to the end might wonder where the Lord Ruler got his fantastic healing powers. Well, it has to do with Feruchemy. See, the ability to heal one's body is one of the things a Feruchemist can store up. And, the Lord Ruler's power–by being both Allomancer and Feruchemist–is to draw near-infinite power from his Feruchemical storages by burning them. He can be any age he wants. He can live as long as he wants. And, he can heal as quickly and much as he wants. More on this in book two.

Skyward Pre-Release AMA ()
#121 Copy

wiresegal

In post-medallion-tech Scadrial, (i.e. Era 3) is there any cultural awareness of transgender people? Since for some, their biological state would be affected by Feruchemical gold healing, and that would probably be a documented effect.

Brandon Sanderson

The different cultures and subcultures are going to look at this differently, but I'd say yes, there is awareness. And the more they experiment with the metallic arts being available outside of genetic lines, the more this will be understood for reasons you point out.

Tor.com Q&A with Brandon Sanderson ()
#122 Copy

Maru Nui

What does aluminum do in Feruchemy? What does malatium do in Hemalurgy?

Brandon Sanderson

RAFO. We'll be releasing a chart eventually that includes all of the powers. I don't want to speak until I have everything nailed down exactly the way I want.

/r/books AMA 2015 ()
#123 Copy

KingSloth

Does a Spinner Ferring have to be actively doing something to 'lose' fortune, while storing? Slightly worried that they'd end up giving themselves cancer or something if they were sat storing fortune, without doing something like playing cards to 'drain' the luck away from..

Brandon Sanderson

RAFO.

Stormlight Three Update #5 ()
#124 Copy

kanuut

Why don't Feruchemists wear small metalminds like rings, toe-rings, earrings (Lot of rings it seems), as backups.

Brandon Sanderson

Most Feruchemists do just what you say. Look at the Lord Ruler and Sazed. Both have tons.

In the new era books, you have two Feruchemstis where it doesn't make sense. Wayne's healing stores are very difficult to build, and take a lot of time. He generally burns through them quickly, though sometimes mentions he's got a little stored away. Being Wayne, though, he tends to use these up and push himself right to the edge of running out.

Wax is somewhat similar. He can use iron, a very common metal, to store and make a metalmind. He's generally storing weight everywhere he goes, a little, as the books point out. He's got many metalminds, but he's not as possessive of them, as filling his metalmind is as much of a power as tapping it.

So...I'm not sure what gave you the impression that they don't have lots of metalminds. Also, keep in mind that in your example of someone getting knocked out, they're going to get searched well enough to find a toe ring. Generally, as Wayne has pointed out in the books, sticking a coin or something in your mouth is the preferred way to hide something.

Skyward Pre-Release AMA ()
#125 Copy

XMikethetrikeX

A question regaurding Feruchemical iron:

So, while Sazed was guarding one of the gates to Luthadel, he tapped weight to compensate, he had to tap pewter as well. Also, when he was climbing a tree, his strength to weght ratio rised, making it easier for him to climb it. Wax doesn't have to do this- when fighting Miles on the train, he's fine without any sort of muscular enhancement, and when he is climbing in the sets base, he notes that he does not make himself lighter because it would simply decrease his weight and strength equally (in contrast to Sazed climbing the tree).

So, is this difference for the same reason people can push/ pull on atium, being the you hadn't fully developed your idea for the cosmere yet? Or is it some other reason?

Brandon Sanderson

Hmm. I think the mistake is more on me writing the Wax scene than in the original. (For him climbing, specifically.) I'll put Peter on this and see if it's a continuity error we want to fix.

/r/books AMA 2015 ()
#127 Copy

The_Second_Best

Are Feruchemists the Batman of the Cosmere? They can beat anyone with enough time to prep?

Brandon Sanderson

They are very versatile, but I'd say that Elantrians--on their home turf--could win in that department. They things they could do with enough preparation are even more impressive.

The Well of Ascension Annotations ()
#128 Copy

Brandon Sanderson

Chapter Twelve

This chapter is meant to be our "pay off" chapter for the time we've invested into Sazed over the last few chapters. I, personally, think it's the coolest chapter in this section of the book.

Feruchemy really turned out well as a magic system, and I'm glad I found a place for it in this book. It connects with Allomancy perfectly; I'm actually surprised at how well they go together. (As you may recall, I originally tried out Feruchemy in a book I now call Final Empire Prime.)

Here, you finally get to see some REAL Feruchemical tricks. Sazed can do so much more than just make himself strong (like he did in book one) or memorize things. If you think about it, there are an awful lot of things that can be done to intertwine Allomancy–with its Pushes and Pulls–and Feruchemy, where a person can increase or decrease their weight.

Chris King interview ()
#130 Copy

Chris King

A lot of people wanted clarification on weight in regards to Pushing and Pulling, whether or not it has a direct correlation to the power or if it's just something people say because generally someone heavier is going to Push--

Brandon Sanderson

Right, right. It's more-- I mean, the whole-- If you really dig down into it, and I've talked about this before, the whole mass, weight, Push, and Pull thing gets a little tricky when--particularly when you throw Feruchemy into the mix-- Are we changing mass? Or are we changing what the power of the earth pulling upon you is, and things like this. Generally understand that most people who are talking about this are not speaking in scientific terms and they are speaking in colloquialisms.

/r/books AMA 2015 ()
#131 Copy

JediofChrist

In Alloy, there are those who use both Allomancy and Feruchemy. However, I recall Sazed in The Hero of Ages stating that he believed he was the last surviving Feruchemist (I think he may have said "Keeper"?). Was he incorrect in his assumption of being the last Feruchemist (based on the fact that people use Feruchemy in Alloy) or could Feruchemy have been recessive in some Terris people?

Brandon Sanderson

It was most certainly recessive. But the specific way Sazed speaks there is important.

Arcanum Unbounded release party ()
#132 Copy

Slowswift

When you take a memory out of a coppermind it starts <degrade away>.

Brandon Sanderson

Yes.

Slowswift

Would that happen with someone who has an eidetic memory?

Brandon Sanderson

Well... no. With the exception of, a photographic memory is disputed by science. In the cosmere they exist, magically enhanced. But there is science in our world that says these aren't real things. So, I'm not sure. You'd have to go to the science and see if they're actually real.

Slowswift

But if it is real, then it would...?

Brandon Sanderson

Then it would not degrade. It's the brain's own failings that are causing this.

Starsight Release Party ()
#133 Copy

Questioner

There are Allomantic savants, are there Feruchemical savants?

Brandon Sanderson

Much harder to do. My feeling on Feruchemical savants was because it was your own power in the first place, you can't steep in it so much in the way. But, if you can get someone else's power or if you are fueling your Feruchemy another way, you would become one. So, the Lord Ruler is a good example.

Questioner

Was Miles a...

Brandon Sanderson

Yeah. Miles would be the same sort of thing.

Questioner

Is that why he didn't die as quickly in the execution?

Brandon Sanderson

Yes.

So yeah. Normally no but if you can Compound you become... basically that is how I am explaining part of the Compounding abilities. 

General Reddit 2015 ()
#135 Copy

Questioner

[question about using Feruchemy in Dungeons and Dragons]

Brandon Sanderson

Why Feruchemy "works" in book terms is because it's about intrinsic trade off. We see the character pay something, so we accept when later on, they're able to do something dramatic. Narratively, their boost is "earned" in much the same way that a character "earns" their ending winning a duel by showing us through the story that they've been practicing with the sword.

You need to "earn" your boosts. If I were a GM, I'd suggest that you can store attributes during one day of gameplay, to use it during another day of gameplay. -2STR for one day, +2STR for the next day. I'd say no more than -/+2 at first--with feats or Feruchemist prestige class levels allowing you to do 4 or even 6. Storing senses could be covered with WIS, and health with CON.

Alternately, if you want to get into the specifics, you could try something where when you land a hit, you can use a smaller damage die (a d4 instead of d6) to "store up" strength. Then later, when you need it, you can trade in one of those stored moments (which would be capped with a maximum number that could be stored at once, to be raised by requiring you to find special metals) to raise a damage die during a climactic battle--maybe making your d6 into a d10. You could do the same thing with spot checks (take a penalty for specific rolls to be able to add to the later on.) HP could be done the same way--drop your HP for a battle to "store" then raise them for another battle.

This is more of a tweak to the way the books use the magic, but the idea is to make certain your cost is still a cost. You get ahead by choosing the times to - or +, making it fun--but you are always paying a price.

So the first question I'd ask myself is do I want this to be a time period thing or a specific instances thing--which would be more fun to play? Then ask is this about attributes or specific skills/hit points, etc? Define some rules, define how you get better, and then have fun within the system.

Personally, I'd avoid the will save as a cost to drawing out the attribute or ability. Perhaps make it require concentration checks if you want to make it tougher--but requiring a will save to magically gain strength doesn't feel very "feruchemist" to me and downplays the real fun you could have with the character. Role playing a day spent with very low spot checks, or a terrible constitution, could be really fun.

I'd also figure out if you can do some kind of "super move" with the abilities by storing up a whole lot. (Like ten units, however you decide upon them.)

My take on the attributes: Iron: To be used in a role playing way, making yourself lighter or heavier, with no battle implications. Steel: Increase/decrease movement speed in a fight. OR under the effects of a "slow" spell for a day, vs under the effects of a "haste" spell. Super move: Very limited time stop. Tin: Spot Checks or WIS. Pewter: STR checks, damage die, or +/- damage to each hit. Zinc: Bonus to hit (for thinking through the situation) or bonus to initiative. (With corresponding negatives.) Brass: Specific fortitude checks.Copper: Mostly role playing. Memorize a book, or an entire library, if given time. Blank things from your mind to prevent mind reading. Bronze: Mostly role playing, with (perhaps) being able to "rest" immediately and get back any abilities that come with it. (Haven't played 5e--these were big in 4e, but don't know if they kept them.)

These metals are going to be rare.

Cadmium: Not having to breathe for a time could have all kinds of applications, though I'd love to hear you role play hyperventilating all day for one session. Bendalloy: Not eating and storing calories. Great for role playing.Gold: CON bonus, hit points, or something like that. Sudden healing is great for gaming. Electrum: General bonus to all skills. Chromium: Bonus or minus to any roll.

The rest aren't even understood in-world, so I'd stop there. If you go all in on this, I'd say you need some kind of class built around it--perhaps a rogue or monk base, replacing their bonuses with feruchemical abilities that you gain over time.

Starsight Release Party ()
#136 Copy

ElephantEarwax

Would tapping Feruchemical speed cause you to burn metals faster as your whole body speeds up?

Brandon Sanderson

Yeah. I think it probably would. I don't know if we've gotten to that interaction yet, but it probably would. Good question. If it's speeding up... Yeah, I think it would. Good question. If you're in a speed bubble and doing it, it's totally going to do it, and there's some analogies there.

Prague Signing ()
#140 Copy

Paleo

We tried to develop a theory of what a metalmind actually is, and we know that splitting a metalmind can halve the charge effectively or divide the charge.

Brandon Sanderson

It can divide the charge although it makes it much harder to, yeah.

Paleo

But is it actually physical... is the charge concentrated physically at one point or is it more like a gas so it diffuses?

Brandon Sanderson

It diffuses.

/r/books AMA 2015 ()
#141 Copy

vorpal_username

I've been rereading alloy of law and I was wondering about a few things related to speed bubbles.

  1. Speed bubbles can't move once they're put up, but what happens if you put one up while you're in a moving train or something? Does it move with the train? What if the train stops/turns while the bubble is up? (This might have happened and I'm forgetting in which case just ignore me...)

  2. Can an allomancer leave their bubble while it is still up (meaning it stays up with them outside of it)?

  3. What happens to things and or people partially inside of the bubble? Like, if I swing a pole through the time bubble, do I feel extra resistance or acceleration on it? If I stick my hand through it does it get all messed up like in that episode of TNG(S6E25)?

  4. Is the magnitude effect that causes bullets to go off course when entering a speed bubble proportional to the slowing/speeding of time in the bubble? For example, could I put up a very slight speed bubble (gaining me an extra second every few minutes) and get the same deflection as the ones used by Wane in the books?

  5. If you change your weight with feruchemy, is momentum conserved? For example, if I am moving while I decrease my weight, do I start going faster?

Brandon Sanderson

You'd be surprised by how many of these questions I answer in the next two Mistborn books. I think I might have addressed every one except number four. (In that case, the deflection is indeed proportional.) This is a RAFO, but more a "I took all this time to explain it in the text, so let's let you read it there." :)

The Well of Ascension Annotations ()
#142 Copy

Brandon Sanderson

Marsh Vs. Sazed

But first we have the Marsh Sazed battle. I really like this scene, since I get to do something very new with it. Do you remember when I promised you that you'd see some cool interactions between Allomancy and Feruchemy?

I realized almost immediately, when designing Feruchemy, that I could do some very fun things with it mixing with Allomancy. With how much that Mistborn depend on their Steelpushes and Ironpulls, a person who can change his weight would have an enormous advantage. Everyone always says that Allomancy is the better combat skill, but that's just because the resource it uses–metal–is far more plentiful than the resource Feruchemy uses. Put the two into a battle together with enough power to spare, and the Feruchemist will almost always win.

At the end of this, Ham gets to do something. Makes me glad that I wrote him back into the story after forgetting about him. . . .

Oh, and that blow to the head was no slight blow–Sazed's actually wrong. That strike will lay Marsh out for some time. Remember what Ham said about two pewter burners canceling each other out? Well, you just had a very strong soldier flaring pewter hit a man who was simply burning it in the back of the head with a stick hard enough to break it. Marsh is out cold.

JordanCon 2014 ()
#143 Copy

Trae Cooper (paraphrased)

Suppose you had a Feruchemist that was also skilled in Forgery. If they Soulstamped themselves, would they normally be able to still use Feruchemy, and if they were able to use Feruchemy after a Soulstamp would they be able to access their own metalminds?

Brandon Sanderson (paraphrased)

You could do so, but it would require jerry-rigging in order to make it work, since the Soulstamp overwrites the current Spiritual aspect of a person. He then said that the accessing the metalminds would also require some amount of jerry-rigging. 

Tel Aviv Signing ()
#144 Copy

Questioner

I have a question about Mistborn. Is it possible for a spike to steal powers from other worlds?

Brandon Sanderson

It is possible, yes.

Questioner

And, by extension, Feruchemical storage... in the metalmind...

Brandon Sanderson

Oh, in the metalmind, if they had the other power, could they store the power...

Questioner

If there is the Feruchemist, like the...

Brandon Sanderson

So that is theoretically possible, but it would take a lot of finagling. Yeah, theoretically possible.

Skyward release party ()
#145 Copy

Questioner

Can a coppermind be Awakened?

Brandon Sanderson

This is possible.

Questioner

With the memories already in it?

Brandon Sanderson

This is going to be harder because those memories are going to be keyed to someone else, who, by nature, would not be the individual that it was made into. You would have to key those memories to who the metalmind was becoming. There would be an extra step in there; It wouldn't just naturally be that way. We're talking wild, wild, these are possible, but far out, stuff. Possible, but there is an extra step in there.

Calamity Austin signing ()
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Questioner

What were your inspiration when you wrote the [Mistborn] series, or for particular characters--

Brandon Sanderson

Well, Mistborn-- I passed, honestly, through a fog bank at 70 mph driving from my mom's house, and I'm like, "This looks cool, I've got to use this." That's the first thought I can think of. Feruchemy goes back to being in high school and being an insomniac, being really tired and wishing I could store up my sleep, so I'd be sleepy when I wanted to be sleepy. Kelsier's inspiration was a guy who had been only out for himself, who realized the greater import of doing something.

17th Shard Forum Q&A ()
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Thought

Could an iron Twinborn "fly" by drastically increasing his weight, pulling hard on a counterweight so it flew above him, then decreasing his weight drastically and pulling himself up by the counterweight, and repeating?

Brandon Sanderson

It's plausible. It's kind of a 'Thor-like' way to fly, isn't it? (For those unaware, he throws his hammer and it carries him with it, and STOP THINKING.) I played with this idea, but the trick is not getting hit by the counterweight as you pull it to yourself. If you could stop that, you might be able to manage it, but it felt pretty hard to pull off to me.