In an episode of the TV series "Star Trek: the Next Generation", there's an episode where the main characters encounter an alien species whose speech seems to d

In an episode of the TV series "Star Trek: the Next Generation", there's an episode where the main characters encounter an alien species whose speech seems to defy translation. Each time the lead fails to understand the chief alien, the alien says "Shaka, when the walls fell". Eventually it turns out the aliens communicate only by referencing historical events - their whole language is built around the concept of a shared cultural context, and understanding the emotions associated with certain past situations. In other words, their culture is only able to communicate through the use of memes; those without the shared context cannot grasp the meaning of their words. "Shaka, when the walls fell" is a reference to a situation where two parties failed to understand one another or come to common ground. As a bit of twice-removed meta-humor, this explanation of past events without directly saying anything about the video itself is my answer to your question.