Oil prices are sliding. Fast. Brent and WTI crude futures are down nearly 10% in the last week, scraping four-month lows of $64.00 and$60.40 a barrel, respectively, as oversupply concerns grip the market.It's a landmark moment but raises familiar questions about whether the AI boom is a bubble. AI-related capex spending in the U.S. is soaring but a lot is on imports, so is actually an offset to GDP growth. And the bar for future returns is high. But as long as the music is playing, investors will keep danc ...