The Importance of Credit in a Normal Recession

In a normal recession, it happens when credit is suddenly choked off. This normally doesn't happen on its own outside of war or social collapse. But modern central banks managed to pull this off with ease by simply yanking up interest rates. So what happens next? If credit has hit a wall, we will see deafening demands for the fed to step in and print up what nobody will loan. That would be extraordinarily disruptive to an American economy that's grown utterly dependent on 20 years of almost uninterrupted easy money.