Gensokyo Physics: Youkai of Systems goes insane.

[Delfigamer]

Only the Sealing Club CD stories take place in near future. Most Touhou stories generally take place in approximately the time they come out, giving you a relatively real-time update of the state of Gensokyo. For games, this often means the same year; for other stories, the same season.

http://en.touhouwiki.net/wiki/Gensokyo_Timeline

...This.

[Sagus]

...This.

This shows that Maribel travels through time when she dreams (the note was found several hundred years ago), not that they are from contemporany Japan (if that's what you meant to say by linking that note).

[Delfigamer]

(the note was found several hundred years ago)

What?

This was discovered several hundred years ago in the Bamboo Forest of the Lost.

Oh no, my theory was completely demolished.

Time-travel, you say...

[Maribel Hearn]

This shows that Maribel travels through time when she dreams (the note was found several hundred years ago), not that they are from contemporany Japan (if that's what you meant to say by linking that note).

Maribel and Renko are known to be from Japan in a near future, but Gensokyo uses a different calendar. It's 2013 here (in my time zone), but 128 there. You substract 1885 (the creation of the Hakurei Border) from our year. We'd have to check the information we have to derive whether Gensokyo is in the near future as well or not...

[Drake]

It isn't. Gensokyo's been shown to follow our passage of time exactly. The year is in line with whenever a respective game or written work is released. The season and exact time period can vary but that's mostly due to planning difficulties; notably all of the main shooters come out at Comiket which is always August.

[Delfigamer]

So, one result we have for sure: we shouldn't get all statements literally. E. g.:
- Youmu cannot cover 200 yojana in one slash. Just because the whole Gensokyo is about 5 yojana.
- Cirno cannot reach frost colder than 0K, she is just boasting baka.
- No, Aya cannot fly faster than light. Just no.
________

During IN, Keine said she had changed history that no people settled in certain place and village hadn't been created. Though, Yukari was like "O RLY? Reimu look this man walks like nothing have happened, Keine lol".
So, what Keine actually did at that time?

[Sagus]

I have no idea on how to explain Keine's power in a physically possible way. The only thing I can do is guess at how it works; I'm pretty sure she can make people's perception of history change to what she wants, but not actually change their knowledge of it (since Reimu still remembered the human village) nor actually change history itself (since Yukari could still see the village). It seems to be a very specific form of illusion, than can be seem through if you're powerful or smart enough.

[Imosa]

So, one result we have for sure: we shouldn't get all statements literally. E. g.:
- Youmu cannot cover 200 yojana in one slash. Just because the whole Gensokyo is about 5 yojana.
- Cirno cannot reach frost colder than 0K, she is just boasting baka.
- No, Aya cannot fly faster than light. Just no.

Where are you getting these?
- The size of Gensokyo doesn't limit the speed someone can travel at.
- So while I agree with this there's also the little issue that you can't get below 0K.
- Can't fly faster then the speed of light or can't travel faster then light? 'cuz that second one is legit.

[Drake]

During IN, Keine said she had changed history that no people settled in certain place and village hadn't been created. Though, Yukari was like "O RLY? Reimu look this man walks like nothing have happened, Keine lol".
So, what Keine actually did at that time?

The details of her ability are pretty ambiguous, but Keine "hid" the history of the village's existence during IN. ZUN describes history as being reality told from a single point of view, and that history is only history because someone presented it to others (i.e. written down for others to read). While human, Keine's ability is to "eat" history, and as a hakutaku it's to "create" history. So, you could suppose that Keine hiding the human village means she ate its history, and somehow this hides the village from intruders, or rather makes it nonexistent in the intruder's version of "history" of the village. If her ability as a hakutaku is to create history, then it might follow that she pops the village back into history at that time.

could have asked this in misc questions tbh

[Delfigamer]

Where are you getting these?
- The size of Gensokyo doesn't limit the speed someone can travel at.
- So while I agree with this there's also the little issue that you can't get below 0K.
- Can't fly faster then the speed of light or can't travel faster then light? 'cuz that second one is legit.

- But she still cannot cover ~1400km. :/
- Cirno doesn't know it, and boasts, huh.
- Difference is insignificant. Aya still isn't that fast.

[_cf]

- But she still cannot cover ~1400km. :/
- Cirno doesn't know it, and boasts, huh.
- Difference is insignificant. Aya still isn't that fast.

Just pointing that while Gensokyo is a rather small country, Youmu's residence is at the netherworld, an unbounded dimension. There's enough space there for her to slash to her heart's content.

[Starxsword]

- But she still cannot cover ~1400km. :/
- Cirno doesn't know it, and boasts, huh.
- Difference is insignificant. Aya still isn't that fast.

Yeah, Youmu resides at the Netherworld, which is likely much bigger than Gensokyo. It could be the garden or something that was 200 Yojana wide. It also increased in size sometime ago when Yuyuko petitioned for a size increase to probably Eiki.

Aya is known to be able to take a photo of herself while taking a photo of her opponent. This is mentioned specifically by some of the characters. Something along the lines of "How did she get into that photo?"

[Drake]

Yuyuko claims her garden is 200 yojanas long in Youmu's PCB profile. It also says she exaggerates, so it's unknown how large it actually is.

[Delfigamer]

Cool.
Youmu can cut down thousands of garden trees in one slash.
Just as side effect to attempt to hurt Reimu/Marisa/Sakuya.
:/

[Delfigamer]

you can't have negative Kelvins

I believe that too, but... lolwut?

[Drake]

There's a difference between the traditional view of temperature and the more rigorous model used to describe the negative and infinite temperatures. If you don't actually know the physics behind it then don't go throwing it around pretending that it applies to what you're talking about. Even if the concept of negative absolute temperature exists it wouldn't be accurate at all to go "lol negative temperature!" when not talking about the physics surrounding it. It sounds like WMG and that's bad.

[Delfigamer]

There's a difference between the traditional view of temperature and the more rigorous model used to describe the negative and infinite temperatures. If you don't actually know the physics behind it then don't go throwing it around pretending that it applies to what you're talking about. Even if the concept of negative absolute temperature exists it wouldn't be accurate at all to go "lol negative temperature!" when not talking about the physics surrounding it. It sounds like WMG and that's bad.

:/ You are not taking it easy enough, and that's bad.

[Drake]

I think the major reason I'm opposed to it is that you're taking serious and complex principles that are very very likely going to be thrown around completely haphazardly with major errors everywhere just to strap them to something silly, which itself defeats the purpose of using that more serious and strict context to explain silly things. Regardless, I can express my disapproval of it all I want but as long as it's in some not-serious-thread that I can avoid there isn't any problem.

I was totally ok (and even participated) until people started getting unnecessarily serious about ZUN making errors and minus Kelvins existing and whatnot. Sorry if I can't take it easy when people start mixing serious discussion into not-really-serious discussion whether it's Touhou official lore or physics, never mind combining the two and having mish-mashes of Touhou canon material with wild interpretations of that material with physics concepts while simultaneously ignoring the physics. My brain is exploding here.