There have been a couple of times (and unfortunately I didn't make notes of the details, title, page number etc.) when I've been reading a book that I never read before, and have known how the next page was going to go before I turned the page. These were "scholarly tome" type works involving unfamiliar text and unfamiliar terminology, and I remember being so surprised to have a "déjà vu" experience reading them (and to realize that the experience referred to just seconds earlier, and was in my mind) that I held the pages up to the light to see if there was any chance I had seen it coming due to flimsy paper, but no, they were opaque as one could wish.

Aside from the startlingness of the experience, I've never seen any particular "meaning" or "usefulness" to it, but it certainly was amazing at the time.

Liland