**Knowing tomorrow's headlines doesn't guarantee investment success — and Grok's aggressive "no risk" trade would have blown up.** On June 18, 2026, WSJ columnist Spencer Jakab reported on Elm Wealth's "Crystal Ball Challenge" — a real experiment that gave 120 finance professionals $50 and *actual* old Wall Street Journal front pages (with market results blacked out) to trade on. The result? Participants only **broke even on average**, and **one in six lost everything**. When 60,000 ordinary people tried the same experiment with play money, they did *even worse* than the professionals. Grok's recommended strategy — shorting oil, going 3x leveraged on equities, buying airline stocks — assumes markets react predictably to obvious news. They don't. The WSJ noted that "getting headlines right was less important than managing risk." Markets often move counterintuitively: good news can be "priced in," bad news can trigger relief rallies, and leverage amplifies both gains and losses. **The real lesson:** Even with perfect information (tomorrow's front page today), participants couldn't reliably profit. The 120 professionals — who *knew* what would happen — still produced a 1-in-6 bankruptcy rate. Grok's confidence that "there's essentially no risk" is itself the most dangerous part of the advice: the illusion of certainty is what destroys portfolios. Elm Wealth's Victor Haghani summarized: "The market's reaction to news is far less predictable than people think, and position sizing is far more difficult than people realize." AI gets both wrong.