Based on recent TV viewing, I believe that the automation of Middle Class jobs is likely the main catalyst for collapse, and that the process has begun already. Based on income alone, the Middle Class has shrunk by 20% in the last decade. This was a combination of globalization and automation, but the globalization has stopped and even reversed slightly. However, automation has picked up the pace, for example with advances in self-driving vehicles, the 3.6 million truck drivers in the USA are going away soon, and they won't be replaced. Not to mention, the loan on the average heavy truck takes more than a decade to pay off for an independent trucker, the implications are many and will ripple through everything from truck stop hotels to the banking industry.
Artificial Intelligence is enabling some astonishing automation - how many conversations have you had with a computer over the telephone recently? Authors are using text generation to write novels that humans read. My local bakery and coffee shop has gone from three cashiers to one who is still taking cash, while the number of people filling customer orders remains the same, and people swipe credit cards and pay by cell phone.
The estimates are grim, within the next decade 60 million jobs will disappear due to automation. That is about half the existing jobs, and even at the peak of the Great Depression, the unemployment rate was 25%. In 10 years, it will be 50%, and this will mean that there simply won't be enough consumers with incomes to keep the economy ticking along. There also won't be enough government revenues to care for twice the number of unemployed people we had in the Great Depression. They will go into debt further, it is predictable, but in a few decades, the debt will be unsustainable. Currency will spin into hyperinflation, is the almost certain implication.
I find this all too credible, the MidWest is full of people who ended up retiring in poverty while they were waiting for their jobs in the automobile industry to return as the economy recovered, and those jobs never did come back, the assembly line robots do them now.
This grim future was related in a 30-minute program called
Forward Thinking on the Bloomberg TV channel. The episode was entitled "March of the Machines: The A.I. Revolution".
The other disquieting trend is that these machines are converging on and may soon exceed human intelligence. A few years ago, the IBM "Watson" program bested the two human champions on the game show
Jeopardy. Existing A.I. code generators are writing new A.I. programs - and there is no theoretical reason why the A.I.'s cannot eventually be smarter than humans, perhaps even 100X as smart. Perhaps they will decide they don't need people for anything anymore.