Mechanism
Credit Pulls Spending Forward And Repayment Reverses It
Mechanism
Borrowing lets a borrower spend more than current income allows. That spending is pulled forward from the future.
Later, repayment forces the borrower to spend less than income. The initial boost and later reversal create a cycle.
Source Support
Dalio explains this explicitly around 00:06:54-00:08:59 and returns to it throughout the short-term and long-term debt-cycle sections.
Why It Matters
This is the source's core credit-cycle mechanism. It explains why debt can raise spending in the short run without raising productivity, and why repayment later becomes a drag.
Boundaries
The mechanism is clearest when debt finances consumption or assets without enough future income. Productive borrowing can change the repayment picture by increasing future income.