Busch states the "Mag 7" trade is tired and facing capex volatility. He explicitly says, "What investors need to look at is those sectors that are going to benefit from that AI infrastructure buildout. So everything from materials, industrials, energy producers, utilities." The hundreds of billions being spent by hyperscalers (Tech) must flow somewhere. It flows into the physical economy required to build data centers, generate power, and supply raw materials. This is a sector rotation from "Digital AI" (Software/Chips) to "Physical AI" (Grid/Construction). Long the physical infrastructure sectors. If AI capex spending slows down due to lack of ROI, these downstream sectors will lose their primary growth driver.