Weltall

As others have noted, the answer is 'it depends but generally speaking, yes'. For some system-specific details: Metallic Arts: Can be done anywhere and can theoretically be granted to anyone via different methods. Allomancy and Feruchemy can both be granted 'mechanically' to people who don't have the sDNA for it via Southern Scadrian medallions and/or the Bands of Mourning. A way to reproduce Allomancy in a less ridiculously overpowered form is discussed as a potential future breakthrough but as far as we know it hasn't happened yet. Hemalurgy can be done anywhere provided the creator of the spike has the necessary intent and knowledge and its potential to steal all sorts of things is commented on in the Ars Arcanum. And of course anyone with lerasium could become a Mistborn. AonDor, Dakhor, ChayShan, Forgery, Bloodsealing: Because the Dor is located in the Cognitive rather than the Spiritual Realm, Selish magic is linked to geography and gets weaker the further away you get from the region it's associated with. There are ways to work around this limitation but we don't know what they are yet aside from the statement that the Moon Scepter would make such a task 'less daunting'. We do have evidence that the passive effects of being an Elantrian can be made to work offworld but we've yet to see AonDor (or any other Selish system) used offworld, that we know of. Brandon has however made comments on what a Seon bond would look like on Roshar which are interesting. We don't know enough about the process of Initiation to say whether offworlders could access these systems. BioChroma: Breath endows you with the ability to perform Awakening simply by having it, so anyone with Breath can take full advantage of BioChroma's powers whether they're native to Nalthis or not. We see Hoid enjoying the passive benefits of Breath in Stormlight Archive when he comments on having obtained perfect pitch. We also know that Stormlight can be substituted for Breath vis a vis keeping a Returned alive and it's theoretically possible to use Stormlight to fuel Awakening but it hasn't been done yet. Brandon has said that it would be 'really hard' to become a Returned without being from Nalthis so that at least is much more restricted. Surgebinding: Anyone with an Honorblade can obtain the linked Surges and Stormlight healing factor and anyone who successfully attracts a spren could theoretically become a Surgebinder. However, actually leaving Roshar would be a bit more difficult (some special knowledge is implied to be necessary to get your spren away from Roshar's Physical/Cognitive 'zone') and you'd need a store of Stormlight to actually perform Surgebinding. This could presumably be hacked but we haven't seen any examples of that yet either. Sand Mastery: Genetically linked and so far as we know right now there isn't any way to get access to it aside from being born with the sDNA for it or hemalurgy. That said, there's no reason to assume it couldn't be done offworld by someone with the talent as long as you have Invested sand handy. One of Mraize's trophies is almost certainly Invested sand so we're assuming that the stuff can be taken offworld quite easily. Shades: The Ire are evidently concerned about these in some way because they have a means of detecting their presence and if we can take the Bands of Mourning broadsheet at something approaching face value, it's possible to use Shades in some way to power technology. The two may be linked, if the Ire's Shade-scanner was meant to detect Nazh's actions. In any case, it's a manifestation of Investiture with offworld application. Aviar: We know that birds not native to the Pantheon can gain talents but we don't know if other types of animals could, including animals from other worlds. There's no particular reason to assume that a talent once granted would not work offworld.

Tapping weight probably works like F-Steel where you aren't going to be directly harmed by the power itself but you could be indirectly harmed by your application of it. For example, if you fall through a building because you suddenly weigh far more than the structure can support and you injure yourself in the fall, F-Iron isn't going to help you with that. We see this happen to Wax on multiple occasions so I think the above is pretty solid reasoning. Likewise you probably can't tap too much in the way of senses for that to hurt you by itself but if someone were to lob a flashbang at you while you have super-hearing or super-sight the Feruchemy wouldn't protect you against that. Not sure about some of the more esoteric ones like F-Bendalloy and whether you could provide your body with more energy than it could handle, or hurt yourself by eating too much at once while storing. I'm also kind of curious about F-Cadmium and how that would interact under pressure. I presume that it would have some sort of safety to keep yourself from self-induced oxygen poisoning but it might do funky things if you were a diver.

Also some form of power that uses the same fundamentals as F-Chromium (but may not be Feruchemy) which is how he determines where he needs to be.

Welcome to the Shard! Anyhow, the mechanics of Kelsier regaining a Physical body are still a mystery but we have at least one reason to suspect his original body might be involved somehow: His bones survived the Catacendre. If there's any body that would be the easiest to staple his soul into, it would be his original one, no? Offering some support for this is that the other example we have of a Cognitive Shadow in a similar situation are the Returned from Warbreaker. They have their souls stapled back into their (briefly deceased) bodies by the Divine Breath but they gain some unusual perks as a result, like a serious degree of shapeshifting even if most of them don't know how to do it consciously. But we know that the Returned are generally bigger than average humans (because that fits their new self-image as gods) so they're not 'locked in' to the limits of their original body. I mention that to get around the fact that Kelsier's original body just consists of his skeleton at this point. If he sees himself as his old appearance, the Investiture probably can do the rest and give him all the other necessary bits back. Which would also nicely explain why he still has the scars from Hathsin. Anyhow, none of this is to say that he couldn't have some other body or be making use of some method we haven't thought of yet, but I think it's quite possible he's using his own.

Yes, but once you start down that path discussion devolves pretty quickly because it's not hard to find reasons to imagine that pretty much anyone could be a worldhopper based on apperance cues. It's like ASoIaF where you could argue that anyone we see is really a Faceless Man pretending to be someone else; possible and maybe even entertaining, but not really enlightening. Nah, when Brandon wants us to know someone's a worldhopper he usually has them say or do something that stands out. Like 'Zahel' using lots of color metaphors and getting obviously frustrated that they don't translate well, or Galladon's speech pattern when he shows up in WoK as 'Grump', or Mraize with his trophy wall of Significant Things (even if he's native to the world he's then on it's still a clue he's been off it).

Yeah, exactly like that. He mentions that with all the expense and effort necessary to turn the grapes into wine a single bottle of the stuff costs upwards of a thousand lak. To put that in perspective, the Darksiders exchange gemstones for 'several thousand lak each' and it's suggested that a couple hundreds of lak is enough money to live on for for a few months. So they can make wine on Dayside but it's difficult and priced accordingly.

Looked at the built-in randomizer for the new deck. The first thing that popped up? Dear Harmony, how I laughed. Very well done!

I suppose a Lifeless might be mistaken for being koloss-blooded on Scadrial but there's a slight problem in that, well, you're still looking at a zombie. Arsteel/Clod was more self-aware than normal for a Lifeless because of the Breath he was holding when he died but at no point could he be mistaken for a normal human being able to carry out an independent living.

Another counter to the 'electrum alloy' idea: All the metal held in the Trust produced exactly the same effect we've seen in all prior uses of atium in the series. The kandra had no reason to go around alloying the stuff with electrum or any other metal when they were just sitting on it to keep it away from Ruin and nobody acts as though it behaves any differently when used. Not to mention that the entire idea of the atium Mistings would be very screwy if Preservation actually had to make them atium-electrum-alloy Mistings in order to make the stuff burnable by non-Mistborn....

Another of the Heralds. Oh yes, and welcome to the Shard!

He's the person that Hoid exchanges letters with in the epigraphs of the first two Stormlight Archive books and seems to have a non-intervention policy and some relationship with the (in-universe) Seventeenth Shard. And he's a dragon.

Yeah, unless things change the following are the characters who are each getting their own 'book': Adolin and Navani were apparently under consideration for getting their own books but that's no longer the case.

Yeah, we know it's something Hoid can do that predates the Shattering and according to Khriss, Lightweaving on Roshar is similar to the original Yolish version. We have some examples where we assume he's using it (most obviously to explain why he doesn't always look the same between books) but the exact mechanics of it aren't yet defined. Brandon has mentioned on occasion that many of his magic systems have certain underlying mechanics in common, even if the actual practice differs. For example, he's mentioned that Hoid's 'know where he needs to be' ability uses the same underlying mechanism as Feruchemical Chromium but it may not actually be Feruchemcy that he's using. Yolish Lightweaving vs Rosharan Lightweaving would be another manifestation of that. Brandon's attempt at writing Hoid's origin story, samples of which can be found on his website. He wasn't satisfied with it, discourages fans from reading the samples and has warned us not to take anything in it as canon, though parts of it have been confirmed via WoB or other sources as 'at least somewhat accurate for purposes of theorizing'. He plans to rewrite it as one of the final works in the cosmere along with Dragonsteel.

The most obvious one would be when he describes himself to Kaladin:

Shadows for Silence takes place before Stormlight Archive. Brandon has confirmed on multiple occasions that Mistborn Era 2 happens between the first and second halves of Stormlight. Ergo, Shadows for Silence happens before Mistborn Era 2.

Oh, we've definitely been led down false trails by Brandon on multiple occasions... but in this case there's no particular reason to assume a fourth-wall breaking joke at our expense. Known Seventeenth Shard members are looking for Hoid in WoK (he's confirmed to have written the Letter by the way) and they're following a false trail that he left for them. No need to read anything more into it.

It probably has a lot to do with how the Terris population is small and genetically (both DNA and attendant sDNA) more isolated from the rest of the world. As a result, you have lots of people with Feruchemy having children with other people who also have Feruchemy. Whereas for Allomancy we know that Mistings existed before Rashek's Ascension but they were rare and Mistborns were unknown. Mistborns only appear because a very small number of people in a much larger population received lerasium and by default they were having kids with people without Allomancy. As a result, the 'Allomancer sDNA' got diluted a lot faster than it could have in the Terris people. Brandon mentions Terris' isolation here in response to a question about why only Terris has Feruchemy, which touches on some of the above speculation. As to why the default state of Feruchemy is 'all or nothing' while for Allomancy it's 'one metal' with Mistborn requiring literal divine intervention... dunno.

Because he's suspiciously prominent for a no-name background character, he's clearly filling a character niche that Hoid has occupied in the past (as the storyteller in Warbreaker and in a personal capacity when talking to Kaladin on occasion in Stormlight Archive) and while we can't really use appearance for much thanks to Lightweaving, this character sort of resembles Warbreaker!Hoid in having white hair and a beard but also not looking old. And he's hanging around important characters even if he's not directly interacting with them.

We know they broke their oaths, trapping their spren in Blade form and abandoning them and their Plate. We know from the in-universe Words of Radiance that some number of the forsworn Radiants were killed after the fact and also that one Order out of the ten did not participate in the Recreance and 'entertained great subterfuge at the expense of the other nine'. The Diagram suggests that there is a secret of some sort which broke the Radiants and could be employed against them in the present day if it becomes necessary to destroy them. What we definitely do not know at this point is why.

Hmmm... so many powers and if I lived life like a min/maxer and assumed I was going to have crazy Cosmere-style adventures I'd probably pick Twinborn because of the potential for insane brokenness. However, if my fairie godmother (hopefully not of the Dresden Files kind) were to wave a magic wand and give me a power in the 'real world' I would actually choose Forgery. It's perhaps the most scholarly of all the systems of Investiture that we know about which appeals to my own enjoyment of learning and it's got nearly limitless potential. Plus, with enough time and self-knowledge you can make Essence Marks to give yourself training in disciplines you didn't have time for in the real world. The ability to rewrite my past to have learned any language alone would be an amazing thing to have.

Oathbringer has been the 'it's almost positively going to be it' title for a long time now and it's been confirmed since then. Just because it's also the name of a Shardblade doesn't mean it can't also be the name of a text to continue the theme naming. Bear in mind that Brandon has given us in-universe examples of the books whose titles were mulled over but not actually used (like the Book of Endless Pages, which was one planned title for Shallan's book) so it's safe to assume that any possible title he gives has been carefully considered and will fit the pattern, whether it gets ultimately used or not.

Stormlight Archive has a good amount of politics as well, though it does start with a big action sequence. Mistborn takes a little while to set the stage rather than throwing you right into things but then it picks up once Vin (and thus the reader) is sufficiently informed of what's going on to be able to follow the plot.

True, but at this point Odium was already bound up by Tanavast's plan so he wasn't necessarily as free to do whatever he wanted as he was when confronting the other three Shards. And there's some weirdness where the Stormfather claims to have watched Tanavast die, so exactly how the two are connected is a bit fuzzy.

Arcanum Unbounded implies that what Odium does forces the soul of the Vessel to pass Beyond. The essay on Sel talks about how Devotion and Dominion had 'their minds ripped away, their souls sent into the Beyond' so they didn't have a choice and Ambition might be in a similar situation. Ati as noted might not have wanted to hang around after millenia acting as the sock-puppet for the forces of entropy.

This has been asked of Brandon and he's said that it's technically possible to make a Shard-weapon in multiple parts but not easily, it's not particularly useful and the spren wouldn't like it very much. He likened it to turning a hyrdogen atom into one of plutonium using current technology, maybe doable but so ridiculously expensive to not be worth it. Now, we know that some Radiants did make their spren into bows (it's mentioned in Edgedancer) but you'd need to carry string and arrows separately. Making the spren into an arrow wouldn't be all that effective on its own because you need to hit the center of a limb to disable it or hit the spine to kill something, otherwise the arrow just passes right through you with limited effect, where an ordinary arrow will do serious damage going in and present a continuing risk until it can be safely removed. There's also the question of just how far away a Radiant and their spren can get before it affects the Nahel Bond.