When we discuss which one type of ferring we'd like to be, my wife chooses steel or cadmium (she's a runner). I like the ones where storing and tapping both have benefits, like Wax with his iron. My preferred would be brass. Reading some posts here, it seems feelings are similar : pick a metal where tapping is useful enough or storing at certain times isn't too detrimental, or one where storing and tapping both have uses.
So that got me thinking about how being a Firesoul works. Human bodies naturally regulate temperature - sweat to cool down, shiver to warm up, etc. So is a Firesoul just a little better at that? Or do they only store their own feeling of warmth, but not actual degrees?
Brandon has said that storing has failsafes, so if we're storing actual thermal energy from our own body, we can't (or maybe won't) freeze ourselves to death. Presumably we could combust while tapping though.
OR can I actually store ambient thermal energy from around me? Even if I just cooled myself and then naturally took in some heat transfer, storing warmth is going to have some effect on your surroundings. But if we take this to the extreme, every Firesoul is basically Iceman, able to manipulate thermal energy in a range. Which would be awesome.
Can I store warmth just at one part of my body, by many degrees, or is it my whole body only? If it's one part, could I effectively be immune to burns by storing from wherever fire was touching me?
If I'm a brass compounder, can I break the laws of physics and create energy that didn't exist before? This is hardly the only metallic art that could do it - Coinshots are creating kinetic energy that wasn't there before. Or I guess maybe they're pulling it from some shard's Investiture? One of those physics-breaking matter/energy-creating combos has got to be how the Scadrians get FTL...