Hope in the Dark was written to counter the despair of radicals at a moment when they were focused on their losses and had turned their back to the victories behind them and the unimaginable changes soon to come. In it, she makes a radical case for hope as a commitment to act in a world whose future remains uncertain and unknowable. Drawing on her decades of activism and a wide reading of environmental, cultural, and political history, Solnit argued that radicals have a long, neglected history of transformative victories, that the positive consequences of our acts are not always immediately seen, directly knowable, or even measurable, and that pessimism and despair rest on an unwarranted confidence about what is going to happen next.