Yata

During Odium's visit on Sel there wasn't even a land based division on magic. As this features of Sel come to be caused preciselly by his murderous acts there

Probably combustion is cheaper than generate Heat with Compounding... Compounding heat is nice only for portability reasons. I doubt any industrial process will use it for actual replacement og old fashion combustion (or other source of energy)

The Shardblades happen when a Spren is so hightly tied to the physical (thanks to the bond of a certain strenght with the knight) to be able to fully manifest into the PR. Voidspren for now didn't exibited ever a bond of that intensity to allow this. Notice this is true for a true large array of Splinters not only the Rosharan one WoB as reference (little Elantris spoiler in the wob):

Like Calderis said. At the moment we know almost nothing of what happened there. Indeed it's also possible Dalinar didn't channeled Honor at all during his Realmsclap, the reaction Odium had from the scene is freaking out and yelling "WE KILLED YOU" notice the "We" that made a lot of people to think Dalinar was in some way channeling Adonalsium himself. Brandon has also always RAFOed if the "Unite them" come from Honor/SF. Also the killing a Shard by killing its/their intent/mandate/purpose/ecc... is for now completely baseless as the only instances we saw with some details didn't mention something like that at all. One is of course from Mistborn and as I don't know if the OP read it I will skip it. The other is from Odium itself fearing a surprise attack from Cultivation that could be able to murder him.... Def neither of those are about killing or interacting with the "purposes" of Shards

Maybe I am a bit late but the Shardblade VS Aluminium doubt is now solved for sure by in-book evidence. In OB a Shardblade is directly stopped by a piece of Aluminium. My own Wob someone else posted before needs probably to be updated

It's not so simple, the Dor is super compressed Investiture. It's like staying in a plasma storm (by Brandon words) so It's simply extremely dangerous to be exposed to the Dor there.

If I don't remember wrong Szeth considere Stormlight as holy and using it for illumination as a blasphemy (this from the TWotK's prologue)

I am quite sure Wax doesn't keep his Pathian earring all the time. So he didn't use both a Medallion and a Spike at the same time. But as @king of nowhere said, Telsin did that and this without any trouble or Harmony be able to control her

He stated that White sand is before quite clearly. And no I don't think there would ever be any alternative timeline in the Cosmere

I am unsure. Of what kind of discrepancies you refer to ?

Also if the protection is ancorate to a specific object instead of the space itself. I assume the object could be unbreakable but you would still suffer the pushes and be repositionable by outside forces. A last note, the statement about Aons be indipentant by their physical medium's condition is something he arose from the limited perception of Elantrians as only magic users on Sel. I assume every invested stuff would be able to disrupt the Aon if the comes in contact.

The whole issue using the "the daughter didn't inherited" as argument for the chance of a God-Queen. Is that the Daughter wasn't probably a Returned so she can't inherited the throne regardless if they would accept a queen instead of a king. Also like others already pointed. The god-kings lineage is truly too short to make any kind of extrapolation from that. There were like... 5 Godkings in the whole history and at least half of them aren't related by blood to the previous one

Vasher did nothing, the girl used magic on herself with Vasher's guidance. She used the command and her breath was involved. Vasher told her only how to do that

Soulcasting and Forgery are actually extremely different and all the similarity are only superficials. With Soulcasting you performe a permanent change to the structure of something, you don't touch its history and you don't need the plausibility to take place for this own reason. A Air soulcasted to rock knows perfectly it was Air before and to be turned into Rock, it's written in its spiritweb. With Forgery you alter the history of an object messing with his Soul, the Soul fights aganist the overlapping fake-soul you produce to revert to his rightful state, the Forgery is never permanent and depends deeply from the constant stream of Dor to remains in place (if you move a Forged object from the Rose empire it would break the forgery for example) and the true sou of the object is still there fighting to overcome the Magic. With the example I used before, also if extremely unlikely Air Forged into Rock would believe that sometime in the past something happened (honestly I don't know what) that make it rock but under this overlay, the Air's Soul is still there untouched and will soon or later break free and destroy the forgery

Near orders don't share a divine attribute.

Purity is one of the planets of Therenodite system and Nazh comes from Therenody. It's a cultural figure of speech

How could someone deny a so polite request ?

I count in an extreme loosely way the living mortals holding Breath at Type V

My view is for the Fused to lack of Adhesion as it's the surge closer to Honor (similirally as Progression is the surge most close to Cultivation) and one of the two the Bondsmith have. By the way, we saw Fused in CR but it doesn't prove anything as there are many ways to cross the realms and one of them is strictly into the hands of Odium's forces. Also Moash stated to saw the "blacksmith-type" of Fused (or something like that) and this to me means he saw Fused having access to Cohesion

The latter, whatever Timbre is performing with the Voidspren requires her to stay in the gemheart and bully the Voidspren. She can't manifest herself as Blade and at the same time doing that. So for me Timbre manifesting as a Blade would mean for the Voidspren to gain measure of freedom and influence over Venli.

I strongly believe that Venli would be unable to summon a Blade in the state she is in. If in a future moment, Venli will change Form turning into a not Regal form, Timbre is no more required to keep in check the Voidspren in her and she could in theory be not restricted into her gemheart.

A shard could develop a mind of its own if lefted alone long enough. But it's just one of the possible outcomes, another is the auto-splintering of the Shard itself. Regardless, as the developing of the mind is something gradual... Probably in the early stages of its new formed mind, the Shard would simply start to active seek a proper Vessel in an active way

Scadrial was made by both Ruin and Preservation in the same amount, but much more, there is no sense in choosing the 16 (or any other specific number) from Preservation. Whatever the number is, Pres had only to enforce it in the natural pattern to show a sign of design (what he did after all)... He didn't require the 16 specifically

I am not truly sure of what you wanted to propose. In Allomancy, you have a SpiritWeb able to tap from Preservation using a subset of specific metals as gateway for the Preservation's power stream. The molecular structure of those metals shapes the raw Preservation's Investiture into one of the Allomantic Powers. On Therenody, the local silver could interact with the local Cognitive Shadows knowed as Shades. They are hurt by it and the wounds they leave could be healed applying that silver on the damaged part. Now, if I understood correctly your idea, you find some paralles between this two phenomens. And I could see your point in a loose way. But as we known very few of the Therenody's phenomen it's hard to understand how much different they are, some critical differences are: - Preservation is not involved - The Silver is ruined but not destroyed, this imply an alteration of the metal rather than a "burning" in allomantic sense. - The amount of silver required to interact with Shades doesn't seem constant. A relative high amount of Silver is required to heal someone from the Shades's corruction ability and to harm a shade (that in theory is just a tiny fraction of a Shade) and a relative small amount is required to hard or kill a Shard (that has a magnitude more investiture than the corruption in a mortal)... This suggest more a direct interaction between the metal and the Shade's Soul (like some items shown in other places) rather than a slow "burning" effect. Ok now, what I didn't understand. Was your whole point about Allomancy or it was about a broader scope ? PS: As this topic touchs both Mistborn and SfSitFoH some mod probably need to move it into the Cosmere Section or you have at least to modify the title to include the possibility of Spoiler from the other book