Warren Buffett, known for his smart investments, is causing a stir by not buying stocks and instead hoarding a massive $189 billion in cash, leading many to worry he’s bracing for a market disaster. Buffett’s recent move of selling off a huge chunk of Apple stock—once a cornerstone of his portfolio—has experts on edge, hinting that a major market crash could be on the horizon. His silence and massive cash reserve have sparked speculation that he’s expecting a dramatic 40% drop in the stock mark...