Formal communication tends to be verbal. Words, lots of words.
Not so between individuals. We send and receive at many 'frequencies'. Think body language. The performance Your Majesties illustrates what happens when a given set of words are spoken in radically new ways.
Risk communication is difficult. Sometimes, words fail us. How can we express risk, conveying a sense of urgency to another party? Do we have to make do with words alone? Could artistic expressions somehow help us?
Wordless isn't worthless.