Is a paragraph starting with "She nervously peered over the edge." a placeholder text, or something else?
She nervously peered over the edge. She understood in her mind that the view was supposed to be beautiful,but all she felt was fear. There had always been something about heights that disturbed her, and now she could feel the full force of this unease. She reluctantly crept a little closer with the encouragement of her friends as the fear continued to build. She couldn't help but feel that something horrible was about to happen.
I first saw it in this video, and Google searches imply that it came from some educational text, but is it really? If so, which one, and when?