“Throughout history, rulers have run up debts that won’t come due until long after their own reigns are over, leaving it to their successors to pay the bill. Printing money and buying financial assets (mostly bonds) holds interest rates down, which stimulates borrowing and buying. Those investors holding bonds are encouraged to sell them. The low interest rates also encourage investors, businesses, and individuals to borrow and invest in higher-returning assets, getting what they want through monthly payments they can afford.”