So the question becomes, if the world's economic systems are so fragile, and if collapses are common in a world of competing systems, why are we not talking more about the possibility of collapse? Obviously our leaders don't want us talking or thinking about that. And they try hard to frame the discussion so we don't.
Most people would agree (including many historians) that the best way to anticipate the future is to study the past. But what if our version of history is wrong? What if our history is distorted to sell an agenda? After all, the word "history" is made up of two words: his and story.

Fed Chairman Ben Bernanke, the Princeton University scholar of the Great Depression, often says that the depression could have been averted if only the government had printed more money. That's his story, but that's not what history says.
After the crash of 1929, FDR was elected in 1933. He immediately took the U.S. off the gold standard through the Emergency Banking Act and introduced his New Deal. This allowed him to print more money and rack up huge amounts of national debt. At first it seemed that FDR's plan was working.

Yet in 1938 there was a "depression within the depression." Economic output collapsed and the unemployment rate rose from 14.3% to 19%, in the face of a year-over-year decline from the peak of 24.9% in 1933.
History proves Bernanke's claim (that FDR didn't print enough money) to be wrong. This is what Roosevelt's Secretary of the Treasury, Henry Morgenthau, wrote in his diary in May 1939: "We have tried spending money. We are spending more than we have ever spent before and it does not work. And I have just one interest, and now if I am wrong, somebody else can have my job. I want to see this country prosper. I want to see people get a job. I want to see people get enough to eat. We have never made good on our promises. I say after eight years of this administration, we have just as much unemployment as when we started. And enormous debt to boot."

World War II broke out in 1939 and many people credit that war with saving the economy. While the war did boost the recovery, it was the Bretton Woods Agreement, signed in 1944, that put the world back on the gold standard, which stabilized the global economy.