in the early 2000s and every single vendor there was saying that developing mobile apps using UML was the future. No code, just map out everything in a diagram.

in the early 2000s and every single vendor there was saying that developing mobile apps using UML was the future. No code, just map out everything in a diagram. UML in later versions got so bad that even the original creators disowned it. Turned out that putting everything into a diagram was just as hard (and less convenient) than writing it as code.