Dario Floreano1,2, Hod Lipson1,2. 1. Dario Floreano is the Professor of Intelligent Systems at the School of Engineering, Ecole Polytechnique Federale de Lausanne, Lausanne, Switzerland. Email: dario.floreano@epfl.ch. 2. Hod Lipson is a Professor of Engineering and Data Science at Columbia University, New York, NY, USA. Email: hod.lipson@columbia.edu.