Meeting science-based targets will mean forcing some of the most profitable companies on the planet to forfeit trillions of dollars of future earnings by leaving the vast majority of proven fossil fuel reserves in the ground.7 It will also require coming up with trillions more to pay for zero-carbon, disaster-ready societal transformations. And let’s take for granted that we want to do these radical things democratically and without a bloodbath, so violent, vanguardist revolutions don’t have much to offer in the way of road maps.