> The question isn't whether You Ain't Gonna Need It, the question is whether when you do need it will so much have changed that other design-aspects won't be v

> The question isn't whether You Ain't Gonna Need It, the question is whether when you do need it will so much have changed that other design-aspects won't be valid anymore. This resonates with me. But IMO YAGNI isn't necessarily different from asking "whether when you do need it will so much have changed that other design-aspects won't be valid anymore." If "it" is reduced coupling (to make something easier to change or remove), or any other not-immediately-necessary abstraction, it's really the same question