Don't distract. I'm genuinely trying to help us figure out how to build quality software, using AI, while avoiding all the problems we're seeing on so many teams.
Winston Royce, in his book, invented the waterfall methodology as a hypothetical of what not to do in order to help explain his core thesis. It is not a real thing. Why do you suggest the Agile Manifesto was created to help avoid leaning on a strawman?