Zapata

Allomantically, a goldmind and regular gold are pretty much two different metals. Burning a goldmind causes Preservation's Investiture to take a different "shape" than regular gold does. Therefore, the Investiture flowing through Miles is different depending on which gold he burns. So he would develop savantism for both at different rates.

He's definitely a Bloodmaker savant at this point, but probably not an Augur savant

Yeah, Sel's healing is exactly determined by the symbols drawn (base Aon Ien probably just gave a small boost to Roial's natural healing, which was still not enough for him to survive), Scadrial's just empowers the body's existing mechanical healing, and Roshar's depends on the perceptions of the healer and healed. Nalthis's is probably the same.

You think he plans his lines in advance? Spends all day coming up with scenarios in his head and writing speeches.

Anti-Investiture reactions definitely cause explosions (like the sphere in RoW), but the mechanism for Investiture seems to be that even when it causes a Physical action, it still eventually bleeds back into the Spiritual Realm. So I think it's both, really, unless Anti-Investiture reactions truly consume the Investiture a la Nightblood.

This makes sense, because Stormlight healing is very perception-based. since the whole of Surgebinding is very perception-based, so there is a lot of range of outcomes with it. But gold healing is just using your body's natural ability to heal, meaning that it would probably be less based on personal Identity and more on some Spiritual-biological function. And Progression and Returned healing involve the healer's Intent as well as the recipient's perception, making them even more complicated.

Personally, I think that Dalinar's forces will break the deal (or Dalinar will just plain old lose), but T-Odium will somehow break the deal between Rayse and Taravangian (a fitting character arc for T, imo)

This is what I've been thinking as well. In fact, I think the reliance on law comes down to two things, really: Fledgling Skybreakers mistrust of their own morality (making them require the law as a "crutch"), and Nale's specific influence since joining the order. Because if the Second Ideal is supposed to be to follow the law, I do not see how the Third Ideal is really any different (if a Skybreaker swears to follow the laws of the lands they reside in), since either way breaking the law breaks the ideal. I almost feel that Szeth swore a more "true" Second Ideal. As far as Nale goes, perhaps his emphasis on law prevents other Skybreakers from reaching the Fifth Ideal. His rhetoric that human morality is fallible might prevent other Skybreakers from having the confidence to trust their own judgments. Not him, of course. At some level, Nale does make his own moral judgments, such as believing that Dawnsinger law takes precedence over Era of Solitude law. But other Skybreakers seem to rely on Nale for their own direction, and seem uncomfortable acting without his guidance. Regardless, I think that Szeth might be on track to not have to follow the law, but not (yet) his own judgement either. Obviously, right now he is relying on Dalinar as well as his own empiricism (i.e. he believes the Stone Shamans are bad because they said he was Truthless for lying about the Voidbringers, but he was not lying, so their judgement is wrong), but Dalinar is not bound by oath to laws.

His fourth was to cleanse the Shin of their false leaders. That doesn't bind him to anything other than that quest. Although it's possible that the Fifth might bind him to the law. But I think the point of the Skybreaker oaths is that a Fifth Ideal Skybreaker is finally confident enough to trust their own sense of justice and morality, and to throw off the need to rely on the law. Here's the thing: the highspren were impressed by Szeth's demonstration at the Purelake where he washed the colored powder off based on a technicality. I get the feeling that at least some highspren (including presumably the one that actually bonded him) would be receptive to a loophole like that if presented in the right manner.

This is a simple observation. Despite Skybreakers being known to follow all laws, and Brandon even saying that the generic Second Oath is "I swear to follow the law", Szeth never swore to follow the law. His second oath was "I swear to seek justice, to let it guide me, until I find a more perfect Ideal". This is not explicitly an oath to follow any law, and considering Szeth being willing to take advantage of technicalities of phrasing (like with the dye-throwing contest), he can get away with breaking laws if he thinks they are unjust and gets his highspren to agree. His Third Ideal is also not to follow exactly the laws of the land (as many Skybreakers do) but rather to follow Dalinar, which still does not explicitly restrict him to legal actions.

From what we've seen, the second Skybreaker Oath has been more personal. Brandon's generic oath is "I swear to follow the law", and Szeth's oath is "I swear to seek justice, to let it guide me, until I find a more perfect Ideal". Whereas the Windrunner Second Oaths we've seen have both been "I will protect those who cannot protect themselves", and Brandon's was "I will protect". There seems to be more uniformity among the Windrunners than Skybreakers so far.

He hasn't been shown to be bonded to one, and only seems to hold other people's Shardblades. And he does have experience with screaming magic swords, so he could actually be uniquely suited to handling a Shardblade that screams in his head.

I feel that, from a meta perspective, Taravangian might end up acting against Odium's deal with him. That's such a large obstacle that it basically has to turn up, and there should be some level of payoff to it.

I'm not sure this would fit with the Chanarach theory though. It seems to me that each Herald could still be broken on Braize (otherwise a Herald dying during the prologue wouldn't matter), meaning that abandoning Taln without knowing about Kalak was incredibly risky.

I'm not a fan of Syladin. However, with Kaladin heading to meet Ishar, there opens up a plausable way of pulling Syl into the Physical Realm. I am not sure how likely it is, but it's possible.