TL;DR : a partner whose every output you can fully predict carries you zero new information, because control means predictability and a perfectly predicted source has zero residual surprise (its conditional entropy given your model is exactly zero, H(Y|X) = 0). The collapsing quantity is the res...
Source: [Dev.to](https://dev.to/poushwell/why-anything-you-can-perfectly-predict-carries-no-new-information-18a9)