Stock market investors love a good story, and clearly, AI has been what people want to hear. For perspective, AI bellwether Nvidia (NVDA) alone accounts for 6.9% of the S&P 500 by index weight. Nvidia’s stock has returned a jaw-dropping 1,245% five-year gain, so a boring $1,000 bet in 2020 would be worth a staggering 13,449 (before taxes/fees). A $10,000 investment would be worth about $134,500 today. Also, the Magnificent Seven currently accounts for nearly 35% of the S&P 500’s total market cap/weigh ...