KERALA RISING · FROM EXPORTING PEOPLE TO EXPORTING IDEAS What has changed Artificial intelligence changes the arithmetic of audit, and that single change is what makes this book possible. Verifying a photographed civic action. A bag dropped at the correct bin, a helmet worn, a recharge pit dug, a junction left unblocked, a sapling still alive a year later; is now a task a vision model performs for a fraction of a rupee. A purpose-trained image classifier can run for roughly two tenthousandths of a US cent per inference; even a general-purpose frontier vision model costs on the order of two-tenths of a cent per image, and these prices have been falling by roughly an order of magnitude every year. Verification at population scale, recorded in a public audit corpus, has crossed from operationally impossible to operationally trivial. The bottleneck is gone. [3] [4] [5] That is the whole opening. The other two accelerators are old and well understood. The first one just became cheap. The consequence is that a state can now, for the first time, close the feedback loop on almost any good citizen behaviour it can photograph, and Chapter 5 shows that the cost of doing so is so far below the budgets these behaviours already consume that the AI is a rounding error, and the machine that runs it can earn enough to pay for itself. 55