India's November 2016 move that instantly cancelled most of its paper money[1].
The engine sees it as an engineered shock that pushed the cash economy onto digital rails where it can be watched.
Wiping out 86% of currency forced informal cash dealings into trackable digital systems, followed by a new sales tax (GST) and Electoral Bonds, which channeled about $2.7 billion in anonymous corporate money to political parties until 2024.
It matters because it shows how a money change can quietly make a whole population more visible to those in charge.