The frontiers have long inspired the best, and worst, in humanity. The quest to better ourselves and explore the ends of the Earth, deepest depths of the oceans, the cosmos, and even new frontiers like cyberspace, provides us the opportunity to learn from the past and work for a better future. The successes in this journey have been many, from the 1519 to 1522 Magellan-Elcano expedition around the world through Neil Armstrong and Buzz Aldrin’s footsteps on the Moon four centuries later in 1969 to, just a few years later, the creation and rapid development of what we today call cyberspace. Failures have also been too frequent, as seen in the various global collective action problems analyzed throughout this book, ranging from climate change and orbital debris to marine pollution and cybercrime.