We have seen throughout the book so far how urgently we need to learn how to think in ways that let us deal more effectively with the situation we have created for ourselves. We need thinking skills and habits that fit the twenty-first century context of enormous human power and technology on a now-fragile planet. We’ve also seen the global interconnectedness of just about everything we do. It is not at all surprising that ways of thinking that have taken us to this place might not be the same ones that will help us to live well now that we have got here. The brain skills that we developed over the millennia as we expanded on a big, robust world are not the same as the ones that will let us do well on the small delicate spaceship on which we now find ourselves.