What's a yield curve inversion and why is everyone freaking out?

Sound the alarms, man the battlements, and gird your loins for the next recession. The yield curve has inverted. Anxious headlines blared the news across the financial media. The U.S. dollar dropped on Tuesday, spooked by recession fears, and the Dow Jones Industrial Average plunged a stomach-turning 800 points — making Tuesday one of the stock market's worst days of 2018. "Bond king" and Doubleline CEO Jeffrey Gundlach declared that the "economy is poised to weaken." Okay, you're...