Earlier quoted context omitted.
It really is gone. You can predict what you think it might have been, but you can't know what it was.
it's gone in a single still frame but across many consecutive frames, the information is spread out temporaly and can be recovered (partially) the same principle of how you can get a high resolution image from a short video, by extracting the same patch from multiple frames https://en.wikipedia.org/wiki/Video_super-resolution
It is predicting what the information might maybe have been like.