The sequence of letters which make up a certain book is "an innate fact about the universe". A detailed description of a picture (or sequence of pictures, i.e.

The sequence of letters which make up a certain book is "an innate fact about the universe". A detailed description of a picture (or sequence of pictures, i.e. a video), or an audio waveform, is no different. Information remains information even if the subject is copyrighted. Copyright enforcement in practice consists almost entirely in controlling the distribution of factual information about copyrighted works.