No point, talking nonsense without understanding blockchain

Have you ever thought that BlackRock, one of the world's largest asset management companies, would actually plant a "mine" that would cause an uproar in the entire cryptocurrency world in a short three-minute Bitcoin science video?
Imagine you are watching a video with great interest, learning about the fixed supply of 21 million Bitcoins, one of the core features of Bitcoin, as if it is engraved in its DNA. But suddenly, a line of small words at the bottom of the screen flashes by like a ghost, making your heart tighten: "There is no guarantee that the 21 million supply limit of Bitcoin will not be changed."