The Cosmology of Deltarune — EGG COSMOS THEORY

english subtitles are available 💬

0:00 Intro
0:30 What is Cosmology?
1:42 Nested Universes
2:22 The Cosmos of Deltarune
4:09 Darker yet Darker
5:09 The Roaring
6:48 Religion
7:26 Who is the Knight?
8:55 But Wait, There's More!
11:00 Outro

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if you wanna learn more about Cosmology here's some interesting things to check out!

❤️ *Crash Course Pods: The Universe #1*

❤️ *StarTalk Podcast*

❤️ *Cosmology and Theology*

❤️ *Cosmology within Buddhism*
*[Avatamsaka Sutra]*
*[Vertical Cosmology]*
*SIDENOTE: My definition about Vertical Cosmology in the video isn't entirely accurate (It's a separate concept to the nested universes in the Avatamsaka Sutra) so I really recommend checking out the above article if you're interested. TL;DR: There are three realms mentioned within Buddhist Cosmology—the Formless, the Form, and the Desire—situated lowest to highest respectively

❤️ *Fractal Cosmology*

❤️ *Timeline of Cosmological Theories*

[hbudson]

Amazing video, I really really do like this! Just wanted to make a small addition to it, a little asterisk if you will

The same way you pose this concept of "The Beyond" as a universe situated even higher up, there are many things implying that we also have one buried even deeper down: The Depths. From which hell's roar allegedly bubbles, from which the vessel may have spawned, in which that person in the code is likely trapped, etc (though a lot of this is speculative it's also implied pretty strongly).

In all likelihood, this place is another "layer" of Dark World, if the Dark World is the yolk of an egg then The Depths would be like if that yolk was a shell. If that makes any sense at all, lol. That whole "what if it could get darker than dark" thing from the Spamton Sweepstakes back in the day leads me further into that direction

I don't entirely know how this adds to your interpretation, I very much lack the knowledge of cosmology you have, but do with it as you will!

[PetBrickProductions]

"I accidentally broke the 5th wall, now my audience knows they're fictional."

[stachu]

If I was an object i would be grilled cheese that was left on a shelf for 20 years. epic video

[marcelindasquebradas]

I am always amazed at how, almost three years after the release of chapter 2, people are still coming up with new theories and interpretations of Deltarune. This was genuinely one of the most interesting theory videos I’ve seen, and it’ll probably change the way I see deltarune’s story going from here on out. Great, awesome video!

[ComedicNuno]

You gotta appreciate when someone brings about an exterior matter, topic or theme into the DELTARUNE space and manages to make an UNIQUE theory with foundations from such theme!
A-MAZING video and theory!

[altair-tffp]

the real is what we live in,
the fiction is whats below as,
and the divine is whats above us.
i should be studying rn LOL

[Catishcat]

THANK YOU FOR THIS VIDEO IT WENT FROM "hm, that's basically the text" to "ooo okay this is interesting" to "YES THEORY TIME YEY" to "[very loud ice cream]" AAWAWAWAWAWAWAWAWAWAWAW

[snarlinger]

Loved it :) Really fun take on the layers of reality and what the Titans really are. People rarely talk about Deltarune's existentialist themes as thoughtfully and emotionally as you have here.

[TheSkyGuy]

Very good video!


I have to say one thing: the "angel's heaven" is probably where the diagetic menu and character creator is.

[aceitedeolivas]

me when oberon smog piles of dess's dust knight theory arrives to the function.

[StrawEgg]

Awesome sauce video! This also fits in with the symbolism in the family that uses fire magic and the one that uses ice magic: Ralsei representing hell (the Dark World below, focused on serving Lightners) and Noelle representing heaven (the Real World above, opening up an actual choice for the Player with a new route)

[PlayerCarter.]

I will continue to love the layered universes theory, the subversion of posing our own reality as in the same system of layered universes as the game is one of the best interpretations for "the edge of the shadow where reality and dream meet" imo.

Though I think its at the very least confusing to describe the dark world as a lesser universe to the light world while them also being literally yin and yang. The dark world is certainly in some aspects lesser than the light world to a thematic extent, but I dont think its entirely clear cut.

[davidjohnson]

I feel like a lot of these are ideas that have been swimming around in the fandom for years, but seeing it all laid out with such artistic flair is very special. If we do have some secret purpose in life, you’re hitting yours with this one, chief.

[captainkawaii]

This theory honestly explains why Deltarune feels so personal to me if it's really where Deltarune is headed- it fits in perfectly with my personal philosophy

[jammyjamsforjam]

I think the egg metaphor works really well! This editing is so well done and you explained everything perfectly I played deltarune but didn’t know about this theory but I really like it!!!

[ZachBot]

Genuinely the best explanation of the roaring out there, it makes so much sense

[crazygamingoscar]

This video was really interesting, I liked it!
I am curious about why the roaring between the dark and light worlds would cause all of the consequences it does?

They say "Light is subsumed by shadow", so it seems like the darkworld becomes the higher layer or something?

But also the darkners can't handle it and turn to stone, so its like they're not built for direct interaction with us?

And the Titans being lightners wouldn't really make sense in that scenario? Perhaps its the lightners being treated with the darkworld rules?

The idea of the deltarune cosmology being like an egg is interesting too, because if a rupture can happen between dark and light, is someone trying to do something similar between our reality and the light world?
If there is a symmetry between these two interactions, then the roaring must be analogous to something in the real world.

[RHVGamer]

the titans being real lightners relative to darkners is an incredibly cool idea

[katyadade]

You are so brilliant.

In the trailer Ralsei is bowing to the star that looks like a save point and the sign on a titan, while the gang is preparing to fight

[_leaf_clover]

Hey!! Good video! The editing voice acting and visuals were phoenominal! However I do think it was a biiit scattered, nothing too bad though!

However I do think the lightners being the titans is a bit off. In the roaring it's stated the lightners will need to fend for themselves, lost eternally in an endless night. Combining this with the over abundance of dark fountains, I think it's safe to say the dark worlds will invelope the light world, but because they're colliding with other dark fountains, none of the other darkners will be able to retain their form due to the overlap of their own dark world with another. I think the dark worlds represent the endless night. With them spreading faster then they can be sealed. If I had to guess the titans are a layer above the lightners, but a layer below us the player. I think the lightners themselves being the titans would mess up the story significantly. I think it's also less likley the susie confrontation will be like, "hey lancer isn't real lol." I think it will more be so like, he and the others darkners ARE real, however down to their core, they're objects. Saying they aren't real doesn't make alot of sense in this because like, they ARE, just in their own world, within a world, within our world. Let it be known that, while these characters aren't real in our world, they ARE real in THEIR world. If the egg in a dark world is perfectly real in the dark world, and retains being an egg in the light world, I feel like that should be kind of definitive that the dark world IS real, but most of the beings inside it, cannot retain their form when they cross the boundary into the light world. The same goes for the lightners. They can traverse worlds below them, but It's not possible for them to traverse the world above them, aka us. The egg is assumed to be given by a higher being, (it's just gaster ok everything is gaster all is gaster) and because of this, I feel like he is more so able to have more of a bridge between the dark world and light world because he's assumed to be above both of them.

Tl;dr, the darkners ARE real, but simply cannot go outside the boundary the dark world has. And the titans are not the lightners.

Another quick thing, I feel like dess isn't dead. Moreso missing. If the secret text found in the code i anything to go off of, she's most likley in a VERY dark place. Ie, bunker darkworld, or the depths ie, gaster. And dess having connection to gaster and by proxy the darkworlds, while a good theory, I feel like is going to be executed alot differently.
All we can really do in the meantime is wait til 2090 for chapters 3 and 4.