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.
It was an explanation of the title, not the video. The video is about Jeff Geerling explaining that he is now diversifying his video output to Floatplane due to YouTube AI slop, removing dislikes, censorship policy, and user hostile behaviour. And he explains why it is Floatplane and not Nebula or others.
It's a talking head droning on for ten minutes how he doesn't like YouTube anymore so he's gonna move his stuff to a new platform where they have more community. So you should totally subscribe to his new platform so that he can continue producing awesome content for you!!
YouTube is increasingly user-hostile and the video talks about alternatives like Floatplane and Nebula, the pros and cons of each, and why they're beginning to also host their videos on Floatplane.
Title's a Star Trek reference, and the video is a retrospective on YouTube, the state of algorithmic feeds, and its alternatives. It's largely an endorsement of Floatplane and the creator talks about moving to that platform.
The point about Nebula having an exclusivity clause feels pretty incorrect. I haven't seen a contract, obviously, but tons of videos uploaded on Nebula are also available on YouTube. There are some videos labeled "Nebula Originals" and I would imagine those are exclusive, but that's a fraction of the content on most channels, at least from what I've seen.
He says in the video that YouTube is the only exception to the exclusivity clause, meaning the couldn't also publish to Float Plane or other similar platforms.
I felt very burned when Grady from Practical Engineering promoted Nebula for a new infrastructure series, only to release all of what I had assumed was Nebula-exclusive footage on his main Youtube channel after I had paid for it.
IIRC Nebula has an exclusivity clause in their contract not allowing content creators to upload to other platforms, though I could be thinking of CuriosityStream.
You must mean CuriosityStream because most of my favourite Nebula creators are also YouTubers. Usually, the Nebula version of their video is slightly longer, too.
This point was raised in the video as well, that Nebula has an exclusivity clause. Occasionally, there is a Nebula-exclusive upload, but my experience is the same as yours; most videos are also uploaded to YouTube (usually with a sponsored ad inserted).
