We knew that the stock market had formed a bubble and that it was going to pop as interest rates went up. That, in turn, pushed the stock market off a cliff so steep that we still cannot see the bottom. This all goes back to the Fed's move to keep interest rates at 0% after the 2008 financial crisis. Since interest rates were so low, companies that didn't make money could just borrow to keep the lights on. In 2018, Wall Street got a preview of how ugly this bubble would look once it popped in earnest.

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