As much as I enjoy spending my weekdays with the nerds my colleagues, I love being out in nature with my family and kids or climbing rocks with my (other) friends. That silence and purity you experience when standing in front of a rock face amaze me every time. Being way up on a wall can be a terrifying thing. Even though you are secured with a rope, falling can be critical. No wonder climbing very much depends on confidence: confidence in your partner at the other end of the rope, in the rope itself, in the bolts, in the alloy that the bolts are made of and, most of all, in your own abilities. However, seeing the world through the eyes of an engineer (which I happen to be), that confidence is nothing more than… just physics!