In 1850, French economist Frédéric Bastiat published a parable that would reshape economic thinking forever. Imagine a shopkeeper named Kai whose son accidentally shatters the shop's front window. The gathered crowd consoles Kai: 'At least the glazier gets 6 francs of work!' They reason that destruction creates prosperity — the glazier earns 6 francs, spends it at the baker, who spends it at the farmer, and so on. Everyone benefits! But Bastiat asked: what would Kai have done with those 6 francs if the window hadn't broken? He'd planned to buy a new pair of boots from the cobbler. Now the glazier gains 6 francs, but the cobbler loses exactly 6 francs of business he would have had. The town has a shopkeeper with a window (which he already had before) instead of a shopkeeper with a window...
Popular framing: Disasters and destruction stimulate the economy by creating work for builders and suppliers.
Structural analysis: What is seen is the new spending; what is unseen is the foregone alternative. Counting the visible transaction without netting the opportunity cost systematically miscounts wealth, because the same resources spent rebuilding could have created something new on top of what already existed.
The gap persists because human cognition is wired to weight vivid, observable activity over invisible counterfactuals. The glazier's busy hands are a salient signal; the cobbler's idle afternoon is an abstraction. This is not mere ignorance — it is a structural feature of how attention and narrative work. Until people develop the habit of asking 'compared to what?' for every visible effect, they will systematically overcount transactions and undercount opportunity costs.