There was a time—not that long ago—when I thought I was a genius. Not in a quiet, humble, “I’ve read a few books” kind of way. No, I mean full-blown, spreadsheet-wielding, screenshot-posting, group-chat-dominating confidence. Because everything I bought went up. Tech stocks? Up. Unprofitable disruptors with names that sounded like startup passwords? Up. Companies that proudly announced they had “no clear path to profitability but incredible user engagement”? Especially up. It was like the market had collectively decided that vibes were a valid valuation metric. And I, naturally, concluded this was due to my exceptional investing skill. The Golden Age of “Just Buy Growth and Shut Up” If you weren’t investing during the growth boom, let me paint you a picture. Every company was the future. Every CEO was a visionary. Every earnings call sounded like a TED Talk about how profits were optional but ambition was mandatory. And the best part? The market rewarded it. You didn’t...