What is the Gainax Pose?

gamerant.com:

Studio Gainax, founded in 1984 is one of the anime industry's most prolific and influential production houses, having been responsible for medium-bending, genre-defining titles like the legendary classic, Neon Genesis Evangelion (1995), FLCL (2000) and Gurren Lagann (2007).

Anime studios all have their strengths, weaknesses and proclivities. Anime titles produced by this production studio tend to have their characters assert their dominance in an iconic standing pose seen in various characters. So, who are Gainax, and what exactly is the Gainax Pose?

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Formed in 1980 as Daicon Film by seven university students: Shinji Higaki, Hiroyuki Yamaga, Yasuhiro Takeda, Toshio Okada, Akai Takami, Yoshiyuki Sadamoto and Hideaki Anno. They created their first project for the Daikon III festival in Osaka in 1981, and it was an ambitious short animation featuring a small girl who engages in combat with various monsters, robots and spaceships from popular fiction to make her way to a dried out daikon radish, which she then watered. They returned to the following Daikon convention held in 1983, where they did an updated rendition of their original project with an even wider scope of characters than before.

This project would be the one to propel the young production studio into its initial success. In 1985, the studio adopted the name «Gainax» from adding the suffix "-x" to an obscure Tottori prefecture term which meant giant. Gainax would go on to produce its first commercial project, the critically acclaimed anime film, Royal Space Force: The Wings of Honnêamise, which was released in 1987 and had a chaotic production period. The production of Honnêamise went on to define Hideaki