Tech companies are investing trillions in AI infrastructure to prepare for a shift of economic activity from humans to machines. Financing comes from venture capital, debt, and unconventional arrangements. Concerns about profitability and a potential bubble persist, with the need for $2 trillion in annual revenue by 2030. AI developers face challenges in scaling and achieving expected advancements. Competition from China adds pressure, while the risk of an AI bubble looms. Despite skepticism, AI adoption is accelerating, with significant sales growth and user engagement. The future of AI remains uncertain, with potential for both success and failure in the industry.

Read more at Yahoo Finance: Why fears of a trillion-dollar AI bubble are growing