Kasper van der Meulen is an author and lifestyle adventurer. He went from being overweight, burned out, and unhappy, to developing superhuman focus, fitness, and personal freedom. He put himself through numerous experiments and challenges. He optimized his lifestyle conquered the cold, ran ultra-marathons on his bare feet, tested countless diets, read a ton of scientific literature, and explored as many esoteric practices he could find. With over ten thousand hours of experience in teaching science, self-mastery, and innovation, he decided to demystify and methodize these principles in a fun and bite size manner. As a final test of his focus, he wrote this book within a month, so that he would have to practice every single thing he preaches.