Historically, the US economy has shifted from being driven by private debt to being driven by government debt, as seen after the Great Depression and potentially happening again.
"Back in the 1940s, right after World War II, just like today in the 1920s and 30s, private debt grew so fast until it reached unsustainable levels. Eventually that bubble bust leading to the Great Depression and then the government stepped in to borrow and spend massively causing government debt to skyrocket. The economy shifted from a private debt driven economy into a government debt driven economy."
