An empty room alone cannot be cluttered. It is not until we introduce a superabundance of physical artifacts that our homes grow messy, slowly suffused with stuff.
Minimalism, then, is not a radical lifestyle; it is simply a way to bring balance to our lives—to organize and prioritize and discover what is appropriate for each of us. If something is not appropriate, then it is excess. And excess is the birthplace of clutter.
Clutter: how inappropriate.