Is craziness subjective? Well, from my own experience I can say that sanity is a sliding scale. And there was an obvious point where I went from functional to dysfunctional. Eventually I signed myself up to live in a mental institution. I got institutionalized for 6 months. And after that I lived in a sheltered flat with psychiatric support for 4 years. During those years I got off of medication, travelled the world and eventually learned to live on my own without social workers or psychologists. I think the world is unhealthy in many ways, the word sane in Latin literally means healthy. Prolonged stress is unhealthy, all animals try to avoid it. Our performance-oriented culture uses stress for peak performance. Doing that all the time causes so much damage. And I wish humanity will realize this.