Sundering and specific character questions. [Spoilers]

[Iscah]

But as a show, I think it's currently calculated that for every 43.3 meteoroid tons hit Earth, 1.4 hit the Moon. It is small, but not as small as you think.

And what about that fact demonstrates the Moon is a "shield" that prevents Earth from getting hit by meteors? It's getting hit by 31 times as much space rock as the thing you want to call its shield.

If anything, and assuming I'm doing my maths right, Earth gets more meteors by weight for the same surface area.

The Moon's radius is about a quarter of Earth's. Surface area is 4(pi)r^2, the comparative bit that matters is r^2, simple maths of r=1 vs r=4 would mean Earth has 16 times as much surface area and yet it is hit by 31 times as much space rock.

That seems odd, so perhaps there are other factors that contribute to the Earth collecting more.

Still, if I've calculated that right, it indicates that the Moon gets less impacts than I would have thought.

[Theozilla]

If the Sundering is localised then I don't think there is a "universe of the First". There is a single wider universe but one small patch of it is containing multiple simultaneous realities, each one thinner than the normal density of reality.

The best way I can think of picturing it is to imagine the universe as a stack of paper sheets, mostly glued together but there's one patch that has come unglued so the sheets aren't attached to each other.

Most of the block has a single surface and thick layer underneath, but this section has many thin layers with separate surfaces. It's not clear whether you could access any of the additional surfaces from the surrounding universe or only the uppermost layer (the Source), which looks no different to the surrounding "whole" space.

This analogy represents the universe as 2D while the effect of the Sundering creates a more 3D structure, so to translate that to the real 3D universe then Hydaelyn is some kind of 4D hypersphere thing with only one section of it (the Source) visible from and existing in the outside universe. (I'm not going to pretend I fully grasp how 4D works but I think "seeing a 3D cross-section in 3D space" is the end result, like a sphere intersecting a 2D plane would appear as a circle.)

So yeah, I think it's likely that you can only access the Source from outside the planet, but once you're on the planet it's possible to mess with dimensions and access a different layer of the split world.


...but then, why would Omega have the ability to traverse it if it's a localised phenomenon unknown to Omega's creators?

So in your proposed model, how would things such as meteorites and asteroids work with the Source and Shards then? Would that mean the shards never have had any meteorites hit their planets then?

And if anyone on the shards were to develop hypothetical means of space travel, how would they be able to interact with things in outer-space?

https://gamerescape.com/2018/12/01/f...with-koji-fox/
He seems a little vague about it at first and says that he has to check with Oda, but this is what we have now. Funny enough, it came out right after this thread originally died.

To add onto what Vyrerus said, he does mention the fact the Dragonstar is very, very far away from all this.

Yeah I actually found that interview earlier and posted it lasted night.

And while he said the split/sundering "is focused mainly on Hydaelyn, the planet, being split." He did leave the subject of whether/how other planets in the cosmos were or were not affected by the Sundering, as something that needed further confirmation. And since ShadowBringers and its patches didn't really touch on other planets, I feel like like the official status of how the sundering/split affecting other planets/greater universe, is still officially unconfirmed/defined.

[Vyrerus]

And what about that fact demonstrates the Moon is a "shield" that prevents Earth from getting hit by meteors? It's getting hit by 31 times as much space rock as the thing you want to call its shield.

If anything, and assuming I'm doing my maths right, Earth gets more meteors by weight for the same surface area.

The Moon's radius is about a quarter of Earth's. Surface area is 4(pi)r^2, the comparative bit that matters is r^2, simple maths of r=1 vs r=4 would mean Earth has 16 times as much surface area and yet it is hit by 31 times as much space rock.

That seems odd, so perhaps there are other factors that contribute to the Earth collecting more.

Still, if I've calculated that right, it indicates that the Moon gets less impacts than I would have thought.

You're going by raw size still, and that's not the whole equation. Everything with regards to a cosmic scale and space scale has to be looked at over eons and eons. Even small things change a lot on such a vast scale.

Do a thought experiment for me. Imagine there was no Theia or other speculated moon formation for Earth. 1.4 tons per year for 4.2 billion years is an added 5.88 billion tons of meteroids that would have other wise hit the Earth. We'd have no atmosphere and no life to record such things, either, since there'd be no barrier magnetosphere for 600 million years to let the main planet form its atmosphere. No oceans, no grass, nothing but another Mars.

As far as why the Earth gets so much more meteoroid tonnage... it's because they count all meteoroids, even those considered to be dust(meteoroids that are basically less than a millimeter in size, this makes raw surface area more important). It's all done with equations and theory, as is everything we're talking about, with regards to this, so it's actually unprovable but is the most likely reality. No scientists nor scientific coalition has observed enough impacts to even actually give us concrete data. It's incredibly interesting because they always have to do stuff like compare crater age on the moon to like kimberlite volcano pipes vs. soil erosion rates and stuff to provide evidence that the Moon and Earth's impact rates line up.

And in recent years they're(NASA) finding that the moon gets impacted more and more than they ever thought or calculated, so I'll stick by what I said. It'll likely change again in a few years, and then again a few years after that. If it pleases Judge Moonsong though, we can call the Ancients' Moon a meteor auspice or meteor monitor. A monument to power over something the Ancients feared, mayhaps. /shrug It's not like Final Fantasy is above using farfetch'd science fiction explanations in their plot either, considering in FFIV the Blue Planet is supposed to be our Earth, and the Lunarian's Planet was the 5th planet and blew up turning into the asteroid belt (which is a "debunked" theory going around for decades now).