We’re all tied together due to Bretton Woods where countries agreed to drop the gold standard and instead peg to the USD which would be pegged to gold.

Japan was the first fiat economy to take fiat to its natural conclusion. At one point the Imperial Palace in Tokyo was worth more than the entire State of California - it was all debt-based nonsense and they basically drove the economy off a cliff.

It has been kept on life support for nearly 40 years because if they go down, it will have flow on effects globally; other nations will have economic collapses as a direct result.

Think dominoes, because that’s how it goes. Once they start dropping its a chain reaction across the global economy.