Quote about improvisation (from David Byrne’s new book)

I picked up David Byrne's new book: How Music Works while waiting around in a bookstore. I flipped it to this page with this quote which I thought was quite cool. If I remember he was quoting something else. Anyway, I wonder how this general idea can be adapted to other forms of improvisation, like designing software products or teaching. I am thinking. Do you have an idea?