If I understand it correctly, this video proves again that the presence of information alters matter—that is, reality is defined by a finite amount of information that can’t be created or destroyed.
Not just that, it reinforces the idea that information, in its most subjective meaning, alters matter and is a component of reality.
Measuring the angular momentum in X destroys the knowledge we had of the angular momentum in Z; therefore, the “definition” or “information we could have” about the silver atoms is fundamentally limited.
All these pieces of evidence reinforce again and again what I have been saying since the beginning: information alters matter.