Understanding Macro Economics

How Government Debt
Erodes Currency

A visual guide to the mechanics of the long-term debt cycle: how government overspending, money printing, and loss of foreign confidence form a self-reinforcing loop.

Inspired by Ray Dalio's debt cycle framework
Why this matters right now
$38.5T gross national debt
$970B interest per year — now exceeds defense
$6B/day and still growing
Data as of late 2025 · Sources: U.S. Treasury, CBO
Trigger
Domestic
Foreign
Consequence
Political
T1

🏛️Government Overspends

The government spends far more than it earns, running persistent deficits that must be funded by issuing debt.
T2

⚖️Supply Exceeds Demand

The government floods the bond market. Demand is not sufficient to absorb the supply at current interest rates.
The cycle splits into two paths

← Domestic Mechanics
L1

📈Interest Rates Rise

The market demands higher yields on longer-dated debt.
L2

🔻Borrowing Gets Expensive

Higher rates make credit costly, discouraging borrowing.
L3

⏸️Economy Slows

Less borrowing means less spending, less hiring, less growth.
L4

🖨️Central Bank Prints Money

The Fed steps in as buyer of last resort, creating new money to purchase government bonds.
Foreign Response →
R1

🌍Foreign Holders Take Notice

Foreign countries start questioning the value of their Treasury holdings.
R2

🥇Start Buying Gold

Foreign holders diversify out of dollar assets and into gold and hard assets.
R3

⚠️Reluctance to Hold Currency

Fear of a payment problem creates reflexive selling of dollar-denominated assets.
Both paths converge

C1

💵↓Currency Depreciates

Money printing dilutes the dollar, foreign selling dumps it. The currency loses value domestically and internationally.
C2

🔄Inflation Feeds Back

Currency depreciation makes imports expensive, fueling more inflation, more foreign selling, and further dollar weakness.
↻ This feeds back to the supply/demand imbalance at step T2
C3

🗣️The Political Dilemma

The government faces two painful options: austerity or print more money. Historically, they almost always choose to print.