u/SunozuArt

So I wanted to take a moment to discuss something I recently realized which I think might have flown over a lot of peoples heads while they were playing Xenoblade 3 (for good reason), which is the real life science and significance of the language used in XC3 and how it explains a lot of things that not a lot of people might catch, like how Origin might be powered.

So throughout the game and within the world of Aionions we see large areas of descrution all around which is explained as "Annihilation events". We later learn that Origin itself was created as a mechanism to hinder the worlds from wiping each other out as they are both of opposing matter- in a more literal sense at that, where both worlds slowly attracts each other like real matter-antimatter does.

In real phyics, whenever two types of oppsite matter meet, a process known as "Annihilation" also occurs, in which both particles are entirely converted into high energy gamma-ray photons or other subatomic particles. The most result of Annihilation is of course gamma-ray photons, where photons is a fundemental particle making up the electromagnetic radiation spectrum, but more importantly: photons are the quantum of light. The medium of light is extremely important as Nia explains that they communicated through the medium of light, and the reason for that is because photons- and therefor light, doesn't have an electrical charge, meaning that they don't have an antiparticle so Annihliation wouldn't occur if light travels from one world to another.

We also learn from Nia that the entire "script" of Origin itself is created through the medium of light- Aionios itself is literally a world written in light, the entire mechanism and script powering it is high energy packets of light itself (most likey gamma-ray photons)- but now it becomes a question of logistics, how is that "code" or the entire Ark itself powered?

The main problem with light under normal circumstances is that it'll be absored or dissipate into other energy forms eventually, but you could in theory utilize a 100% reflective surface to trap light forever- altough this is out of our current scientific understanding, it's still more likely scientically possible than a lot of stuff we see in Xenoblade.

So that explains the code running the world, memories/souls, geological locations etc, but to actually utulize that light as energy for the only ""real"" object present- Origin itself- you would have to convert that light into energy to converse the law of energy conservation (energy cannot be created or destroyed), and the light would of course be needed as the script for Aionios, but this is where another detail from the Nia cutscene and explination becomes important again- Origin technically didn't active until after the Annihilation started.

This is a super important detail , because the energy created in that instance would equal an amount roughly equivalent to our the earths yearly output about 200 quadrillion times over! All they would have to do is find a way to absorb and store, even if its a fraction of a fraction of a fraction of that energy, and they'd be set with energy for millions of years. Of course this is sci-fi territory again because storing that amount of power is impossible in real life, but in a world where you can create new universes and a single scientist in said universe is just able to create lifeforms on a whim, this is far from the most unrealistic thing in these games.

However we do know Origin was partially built around the Ontos core according to Shulk, so maybe he was originally one of the structures that held that infinite energy reserve needed to create two other universes, because all the energy needed for those new universes to be able to exist in the first place would maybe even double that of Origin- so dealing with and storing absurd amount of energy isn't a new thing in Xenoblade exactly.

But either way, I don't think any of the language used within this game is coincidental, and because they even explore using annihliation as energy within the game and Nia's reference to "light"- being the thing Annhilation in real life often creates, capturing that energy would be a likely extrapolation based on what we know in my opinion. Either way, I often see 3 under a lot more scrutnity for things like this than any of the other games, as if we learn how the perpetual power works in the other games lmao, but I honestly find what we got in this game to be more facinating and interesting to explore than the other games since it actually explore real life science with a heavy sci-fi twist instead of leaving most of that stuff out. Honestly 3 doesn't have a lot more "loose ends" than the other two games, it just leaves more to subtext over longer exposition, with just as much needing to be extrapolated based on the knowledge the game itself gives like 1 and 2.