Simplicity is not the absence of clutter, that's a consequence of simplicity. Simplicity is somehow essentially describing the purpose and place of an object and product. The absence of clutter is just a clutter-free product. That's not simple.
“I know what I have to do if I want to lose weight and stay healthy: eat a proper diet and exercise. All I've got to do is apply it.”
“I'm living in the present. I have no ambition. It's true. But I want to live.”