Video narration
How does money work in the economy? At the grocery checkout, you pay with cash or tap a card, and leave with food without trading the shop something it wants. Money makes that exchange easier: your payment transfers buying power to the shop. The tap isn't the end of the story. Your payment becomes the shop's income, which can fund its next payments. A card payment doesn't move the same physical cash from you to the cashier; it updates balances instead. From that income, the shop can pay workers or suppliers. When they spend what they've earned, the shop's payment becomes income for someone else. Money doesn't follow one fixed path, but your checkout connects to other people's exchanges. So your grocery purchase links to more than one exchange: money helps them happen, while food, work, and services are the real wealth.