Tech giants are spending trillions of dollars on AI infrastructure . How the heck will all this be paid for? The answer depends on whether users, and especially corporate customers, get value from AI tools and services. And, if that happens, will they pay enough to cover this spending spree and leave some left over as profit? This is the big question that looms over the entire market and economy right now. It's unnerving to wonder whether there'll be any real return on investment from this new