The “Bottom-Up” approach to Mental Life - A commentary on Holk Cruse & Malte Schilling1 Biorobotics and the bottom-up approach to mental life2 The bottom-up approach: Objectives, benefits and constraints2.1 Mechanisms and the evolution of the mind 2.2 Constraints on bio-robotic bottom-up explanations3 Future perspectives: The social insect4 Conclusion