[ryanmercer]

>Why not? Simply because it's a big number?

Mostly because the people/institutions lending the money presumably have a finite supply and a point at which they won't lend more due to risk. `

Then you have wildcards. What if 10% of people in China end up with a car loan, can the lenders (or their insurance companies) survive if a natural disaster destroys 10k cars/lenders? 100k cars lenders? What if China enters into a war? What if tariffs continue to rise causing less trade with China from the US (clearing international freight is what I do for a living, freight from China has very much declined with section 301 already)? What if China does somethnig that causes trade embargoes/sanctions and their economy takes a significant hit? Can the lenders survive 1 million people unable to service their debt? 10 million? What if China enters a war with someone, say Russia, and has tens or hundreds of thousands of jobs disrupted via a draft/conscription or have to shift a million factory workers to wartime production and pay them even less than they make now and they can't service their loans?

With millions of new drivers a year, oil consumption increases. Oil consumption increase = price increase. This price increase raises the cost of all physical goods as transportation of raw goods and finished materials increases. With prices of manufactured goods increasing, trade can slow. Trade slows, jobs dry up. Jobs dry up, debt is defaulted on.

The more you have outstanding, the less sustainable it is, the more your risk increases, the more risk of absolute ruin increases.