Paper money and national borders exist purely because we agree they do
Philosopher John Searle distinguished brute facts from social facts. Brute facts, like the height of Mount Everest, exist independently of human belief. Social facts, like currency, property deeds, and national borders, rely entirely on collective human agreement. If humanity vanished tomorrow, physical paper bills would remain, but money itself would instantly cease to exist.
The Physical World Versus Institutional Reality
A physical piece of paper printed with intricate green ink has measurable physical dimensions, chemical properties, and mass. These physical traits remain true regardless of who inspects the bill or what anyone thinks about it. If every human on Earth were to suddenly disappear, that piece of paper would still consist of cellulose fibers resting on the surface of the planet. Yet its status as currency—its ability to purchase goods, settle obligations, and represent economic value—would vanish immediately. The physical object endures, but its social function dissolves without the human minds that sustained it.
Philosopher John Searle illuminated this distinction by dividing aspects of the world into brute facts and social or institutional facts. Brute facts are features of the universe that exist completely independent of human thought, awareness, or convention. The gravitational pull of the Earth, the atomic structure of carbon, and the geological mass of a mountain are brute facts. They do not depend on human consensus to hold true. In contrast, institutional facts require human agreement, language, and collective belief to exist and function.
National borders operate according to the exact same logic as paper currency. A river or a ridge of mountains is a brute physical feature of the landscape, but its status as a sovereign boundary between two independent nations is not an intrinsic physical trait of the terrain. The boundary exists solely because groups of people recognize it, defend it, and structure their legal and political lives around it. Much of the world humans inhabit each day is built not from physical matter alone, but from shared networks of mutual agreement.