I'm not sure what to say here other than this statement is demonstrably false: "Before word processors were available, text-editing programs offered the basic

I'm not sure what to say here other than this statement is demonstrably false: "Before word processors were available, text-editing programs offered the basic editing capabilities of word processing but without WYSIWYG." There are many, many, many of us who not only have heard of but actually once used word processors—programs or even devices that were called "word processors" as such—years before GUI, WYSIWYG word processors came on the scene. This is the article you're referencing: https://www.britannica.com/technology/word-processor https://www.britannica.com/technology/word-processor but the corresponding Wikipedia pages have more of the history of word processing, and an image search for "word processor" will turn up plennnnnnnty of images of things that are emphatically not WYSIWYG.