Amazon's advertising revenue is booming, with a 22% growth in Q4, driven by strong performance in both retail media and Prime Video ads. However, the company's massive investment in AI raises questions about the long-term returns on these expenditures and the sustainability of its growth amidst market skepticism.

The article explores the significant gap between the massive capital expenditures (capex) in the AI sector and the much lower revenue generated by AI applications. It highlights concerns that the current investment in AI may not yield sufficient returns, potentially leading to an economic bubble similar to the Telecom crash. The author examines trends in AI spending, revenue growth, and the risks facing cloud vendors.

Meta Platforms' shares jumped 11% after the company forecasted third-quarter revenue exceeding analysts' expectations, driven by advancements in artificial intelligence for its advertising business. Despite rising capital expenditures and scrutiny over its aggressive AI spending, investor confidence remains bolstered by the company's commitment to AI development.