2. The book by Peter Senge, the fifth discipline, begins by raising this leverage effect, to conclude the importance of systemic thinking and teamwork, among others, in shaping intelligent organizations. 3. The way this message came to me was providential. First it was sent to me by a contact from Argentina, Esteban Lona, who had received it from Anshelina, who in turn had received it days ago. One of the readers of the Anshelina page left the following comment: the message is not animate. It's from Jean Ederman, a French air traffic controller, but you can't be sure it's true.