stupidity barrier; obstacle to mutual understanding caused by ignorance or closed-mindedness
Refers to the idea that a person's own ignorance or fixed mindset acts as a wall preventing them from understanding others or accepting new ideas. Popularized by the book 'Baka no Kabe' by Takeshi Yoro.
When talking with him, I sometimes feel the stupidity barrier.
To overcome the stupidity barrier, it's important to first acknowledge your own ignorance.
Kanji spelling, less common but still seen.
From the title of the 2003 bestseller 'Baka no Kabe' (The Wall of Stupidity) by anatomist Takeshi Yoro. The phrase became a popular expression for the psychological barrier created by one's own ignorance.