* According to ''Anime/EurekaSeven'', to end existence, all you have to do is [[LogicBomb make too many things think at once...]] thus reaching the limit of questions and causing the universe to overload. Dewey, the BigBad almost succeeds, [[spoiler:by waking up the dormant aliens that have covered the earth's crust]].
** Though this seems to happen only in the anime, where the thoughts have mass (the trapar is made of the dreams of the dormant Coralian crust). In the manga, the limit of questions is never mentioned. The motivations of the Coralians are very different, too.

* ActorAllusion: Creator/KariWahlgren playing a pink-haired CuteAndPsycho AxCrazy girl. [[Anime/{{FLCL}} Sound familiar?]]
* AnimeFirst
* AuthorExistenceFailure: Poor, poor Creator/BobPapenbrook, Ken-Goh's voice actor. He died during the English dub's production due to chronic lung complications, and was replaced by Creator/KyleHebert for the remainder of the series.
* FanNickname: Renton and Eureka are respectively nicknamed "[=RenTears=]" and "[=EuWrecka=]" whenever they get overly emotional.
* HeyItsThatPlace: Fallingwater is the setting for part of an episode.
* MemeticMutation:
** One scene where Renton's face had gone apeshit insane when grabbed by Holland by the collar had evolved into a video called Nijiura 7.
** [[SignificantAnagram Keanu Reeves]].
* TheOtherDarrin: In the English dub, Ken-Goh's voice actor Creator/BobPapenbrook [[AuthorExistenceFailure died before recording all his lines]] and was replaced by Creator/KyleHebert.
* RelationshipVoiceActor:
** Yet again, Creator/JohnnyYongBosch and Creator/StephanieSheh [[Anime/TengenToppaGurrenLagann are]] [[Manga/{{Bleach}} lovers]].
** It might have been the first time that Crispin Freeman's character was really pissed off by Bosch's character, but [[Anime/CodeGeass it definitely wouldn't]] [[LightNovel/{{Durarara}} be the last]].
** Creator/StephanieSheh (Eureka's English [=VA=]) and Creator/KateHiggins (Talho's English [=VA=]) would also later team up again as [[Manga/SailorMoon Sailor Moon and Sailor Mercury]].
** For ''Anime/{{Gundam 00}}'' fans, [[Creator/MamoruMiyano Moondoggie]] is Setsuna F. Seiei, [[Creator/YasunoriMatsumoto Stoner]] is Alejandro Corner, and they both serve aboard the ''Gekko'' under the command of [[Creator/KeijiFujiwara Ali al-Saachez]].
* TheWikiRule: [[http://eurekaseven.wikia.com/wiki/Eureka_Seven_Wiki Eureka Seven Wiki.]]