世界線
Significado: Worldline/timeline — borrowed from Steins;Gate to describe an alternate reality, unexpected development, or a scenario that feels like it belongs in a parallel universe.
世界線 is originally a physics term (worldline, from general relativity) that was popularised in everyday Japanese through the visual novel and anime Steins;Gate (2009/2011). In the show, characters leap between 世界線 — different timelines where events play out differently. Fans adopted the term to describe real-life situations that feel surreal or like they belong in an alternate timeline. 'What 世界線 is this?' became a standard reaction to bizarre news, unexpected celebrity couples, or any development that seems to defy normal reality.
Ejemplos
- あの二人が付き合ってるって、どの世界線の話？ 那两个人在交往？这是哪条世界线的事？¿Esos dos están saliendo? ¿De qué línea temporal me hablas?
- コロナ前の世界線に戻りたいって時々思う。 有时候会想回到疫情之前的世界线。A veces me gustaría volver a la línea temporal de antes del covid.
- 推しがうちの地元に来るとか、どういう世界線？ 推居然来我老家了，这是什么世界线？¿Mi ídolo viene a mi pueblo? ¿En qué línea temporal estamos?
Pronunciación
/se.ka.i.seɴ/
Guía de uso
Contexto: social media, internet culture, casual conversation, reactions
Tono: bewildered, amused, surreal
✓ Correcto
- この世界線だと俺たち同僚なのウケるな。 (It's funny that in this timeline we're coworkers.)在这条世界线里我们居然是同事，好好笑。（在这条时间线里我们是同事，真有意思。）En esta línea temporal somos compañeros de trabajo, tiene gracia. (It's funny that in this timeline we're coworkers.)
- どの世界線でもあの人は成功してそう。 (I bet that person succeeds in every timeline.)不管在哪条世界线那个人应该都能成功吧。（我觉得那个人在每条时间线里都会成功。）Apuesto a que esa persona triunfa en todas las líneas temporales. (I bet that person succeeds in every timeline.)
✗ Incorrecto
- 物理学の文脈で冗談として使うと専門家に嫌がられることがある (Using it jokingly in a physics context may annoy experts who use the term precisely)在物理学语境中当笑话使用可能会惹恼使用精确术语的专家（在物理学语境中开玩笑使用可能会让严谨使用该术语的专家不悦）Usarlo en broma en un contexto de física puede molestar a los expertos que utilizan el término con precisión
Errores comunes
- Assuming everyone knows the Steins;Gate reference — older generations may only know it as a physics term
- Using it too literally as if discussing actual parallel universes in a serious context
Origen e historia
From the physics concept of a worldline (Minkowski spacetime), massively popularised by the visual novel/anime Steins;Gate (2009). The show's central mechanic of shifting between timelines made 世界線 a household word among anime fans, which then spread to general internet slang.
Contexto cultural
Era: 2009-2011 (Steins;Gate release), widespread by mid-2010s
Generation: Teens to 30s, especially anime fans
Social background: Otaku origin, now broadly understood online
Regional notes: Used across Japan. Steins;Gate is one of the most influential anime/VN franchises, making this term widely recognised even outside core fandom.
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