Split decision. Half of this (speculative) nonfiction book makes a strong case for focusing space resources on Titan rather than Mars. The less interesting half is an attempt to predict future decades of American/world culture and history (as relevant to space) that reads like a fever dream cooked up in some ivory tower jam session. In any event, they sold me on Titan, except Mars is where Calvin and Hobbes went in their cardboard box. Mars wins!