Alice gets a 400k mortgage at bank A, so she gets 400k in credit at her (new?) account at the bank. Alice then pays to Bob for the house by transfering the 400k to Bob's account at bank B. No real money or gold is moved. Alice owes bank A 400k with money slave interest rate (e.g. 7%), bank A owes bank B 400k + interbank interest rate (e.g. 4%), and bank B owes Bob 400k (but they phrase it as "he has credit").

Both Alice and Bob's salaries are just credit at banks in the same system. If they sell their cars they get money from the same system. There's no way out.

The banking system's accounting trick to create money was proven by prof Richard Werner.

The limits on cash transactions are growing. To pay for something like a car you'd need a bag of papers as higher denominations to match inflation would never be printed. Cops can seize cash without much of an excuse. Customs can seize cash over 10k without much of an excuse.

A small bank can only go down if other banks don't trust them. Like SBV a couple of years ago. But their assets are taken by a bigger bank. Lehman Brothers was a rare exception and it looks like Goldman wanted them to go down for some petty reason. But the AIGs will always be bailed out.

More small banks going belly up and more bailouts are coming. The world is reducing exposure to dollar. Central banks are selling US treasuries and buying gold. The US dollar's empire is crashing down and the Western banking cartel is getting desperate. They'll try to drag the world into war or some other old trick.