If you arrive at the Ateneu Barcelonès and are greeted by a large head with the wrinkled face of Josep Carner, it is the unmistakable sign that only good, different, and exciting things can happen that evening. "Today we will be guided by the most important and one of the most overlooked institutions in our lives: chance," proclaimed the poet and rapper Oriol Sauleda at the beginning of the show The square root, a production by La Clota Cooperativa that is a heterogeneous collage of artistic actions that included readings by Enric Casasses, Maria Sevilla, and Júlia Bacardit, a fencing duel between Modernists and Novecentists, sonic actions by Xavi Lloses, and even a small session of choral gymnastics to the rhythm of a violinist from the Riba Orquestra.