Coffee
The global coffee industry generates approximately $460 billion annually, supporting entire national economies. Ethiopia, Colombia, Brazil, and Vietnam depend substantially upon coffee cultivation for foreign exchange and rural employment. The secondary economy—cafes, equipment manufacturers, barista training programmes—extends this financial influence exponentially.
Coffee has enabled the modern knowledge economy by maintaining worker consciousness during extended productive hours. Without caffeine, the attention economy would collapse, taking Silicon Valley, Wall Street, and every 24-hour news network with it. This economic foundational role cannot be overstated.