Bzhydack

That's actually not true. We never get to know if this map is fully accurate. Dajer had just vague region to scout, and Starlink was intercepted before reaching destination. They just assumed Perpendicularity was there, because of Dakwara. Their ship can provide enough Investiture for whole base and superweapon. Few Allomancers will not change their energy signature much. But this will matter only if we want to use Physical Realm map to map Shadesmar.

But they still needet to establish those routes! There was a time when EVERYTHING was Emberdark. And yet multiple people from multiple Planets were able to establish routes between them. Nalthis was one of the most prominent centers fo Shadesmar trade, they were literaly sending entire caravans throu Cosmere and they dont have any Invested art that can help them Navigate that we know of... Except of Life Sense that can MAYBE detect Knell (but this is pure speculation). They dont even have Guides, we dont know about any Cognitive Entity from Nalthis. BTW, Scadrian Subastral is actually pretty simmilar to Emberdark with its Mist Oceans... If we are talking ablot converting Globe to Flat , then maybe. But we are doing this with ours maps for hundreds of years. Also Shadesmar alone (not in relation to the Physical Realm) seems to have at least large portions of euclidean space with overall normal physics. Gravity down. Sun up. Normal 4 directions. It is shaped with thoughts of inteligent beings, and physic is, even in magical Universe, the same for all, and inteligent beings will have the same concept for it. Yeah, but we are talking about thinking machines here. If people see something as inteligent, or with personality, it will be reflected in Shadesmar. How many times you called your computer or car as it would be a person? Personification is simply what we do. It actually can occur now. They will see Ealakin Navigators, and will try to make their own version of them. Simply to be independent from Drominad (or probably they will just try to bribe one or two).

Migration and nation- mixing. Scadrial should be in era of globalization. First, now it will be automated. In modern world, noone is running math manually. It probably exist as backup system in navigation devices that were mentioned, but they are dirupted by Emberdark interferences. Second, Dead Reckoning definitly was used in the past. Urithiru has valut full of Shadesmar Compasses, and Dead Reckoning was basicly only method of navigation in that time (outside of Invested Skill). Also, Scadrial have booming interplanetary trade during times of Lord Ruler, how they will be able to establish it without good Shadesmar navigation? And there is also tendency of emploing Seekers as Obligators.

Its not like Shadesmar is changing A LOT, or fast. Once established routes are still in use. Old Iriali map is still mostly correct. Shadesmar is mostly euclidean around Perpendicularities, they are stabilization points. And Seekers are not specializet in just Allomancy. They can detect all forms of kinetic Investiture, but they have troubles with Static Investiture. For example, they can detect Surgescor even summoning of Shardblade. And yes, also Feruchemy in use (while this is very hard)

Also, Malwish have Aonic trap for Nazh. Seems to me that Malwish like to use Selish tech, and maybe Sel is in sort of aliance with Scadrial? Or at least they have a treaty?

But we know Seekers can feel the Knell and the Current. And this should be enough to map Emberdark. But how many Seekers travel throu Shadesmar? We dont see any Metalborn there. Seems to me like Northern Scadrians travel throu Cosmere a lot less than Malwish, so probably noone ever tried to send Seeker (valuable asset in security, what is important in time of war) into unexplored parts of Shadesmar. Also as @Isilel mentioned, Scadrial dont have seafearing cultures. Seekers need to learn what they feel. Seeker taken from the street will not understand what he feels in Shadesmar, even if he feels it. It is not Sensitivity issue, it skill issue.

I wonder how this will work on animals with other ability to use Investiture? Like some Rosharan Crustaceans, maybe Whitespine? They will counter each other? Or animal will gain new power and resonans?

Precisly. This method is known as Dead Reckoning (sounds like metal band ) This is how Europeans were able to sail throu vast oceans and start colonial empires. With empty map, compass, chronometer and chip log. This is also why mechanical clocks were so advanced in Europe - they were needet for navigation. Also, in Shadesmar it would be even easier than in real world, because there is no wind or currents (except the main one) and waves so unitl something unexpected happens nothing will disrupt your course. And Seekers are super sensitive Investirure users. If competent Seeker can feel what emotions Rioter is enhancing then should be able also detect interferences in Rythm of the Current. But he will need to learn what to seek for.

What suprised me the most is probably fact that Malwish seems to not have any Metalborn between them. Also, we heard at least few times that modern equipment cant navigate in Emberdark... but why noone tried "old" way? Navigator skill seems to be really simmilar to Seeker, and we have confirmation that Seeker can indeed feel Current and Knell, with that and proper trainning Seekers should be able to navigate just fine, basicly all is needet is direction, speed and time of travel, and they will always feel direction. Seems to me like indeed Malwish are strongest on Scadrial, but Ellendel is significant on his own right - and probably uses access to Metalborn as levarage, so Malwish dont have them in numbers they would want.

My theory is that Scadrial is relativly loose Federation of countries, or something simmilar to European Union, so have few independent countries, but they present one front in interplanetary politics. Malwish have Scadrian Perpendicularity. Of course they would be the strongest on Scadrial, even if they werent before Space Era. Who thinks Time Tellers were responsible for inventing Intensifier?

Im with you here, we even get info that Malwish Empire is the strongest from Scadrian Fractions, but I dont think Scadrial is internaly divided. It can be something like Federation of few political Entities, with Malwish as leaders.

This WoB doesnt sais it is required. Just it is part of, but may not be necesery part. Considering fact his answer to the question about Hemalurgy and AI was RAFO, I think we can see Hemalurgic Computers one day.

I see two possibilities about El and his Blade: First, this is Voidspren. Most likely Regal Voidspren, but maybe ineed even Chemoarish. We still cannot identify El's Brand, so maybe he somehow combined being Fused and Regal. Second, this is his own soul. Fused are basicly Spren after all, so maybe he learned how to manifest part of his soul as Shardblade. Or maybe this is soul of other Fused - and this is the reason why they fear him. Becauae they do - we can clearly see this.

I think Radiants can run on Warlight, and also they can get Stormlight either from Towerlight or from Warlight, but problem is Retribution can simply absorb this Light in any time. So they need to figure out how to blank its Identity and cut off from his influence.

More likely it will be F- Steel. And probably not very large amount, because she was cought with Lashing. Also, I like theory about Shallan being influenced by emotional manipulation - and dont need to be Allomancy. We still dont know powers granted to Mraize by his Aviar. And speaking about Aviars... You noticed that Parrot - Aviar dispeares? Maybe indeed it was not Aviar, but Kandra?