AI can work. The bubble can still burst.

You do not have to believe AI is useless to worry about an AI bubble. You only have to think the price of a business, or the cost of its expansion, assumes more future profit than it can deliver. That is the distinction missing from too many arguments. A useful service can attract paying customers while its investors earn disappointing returns. An expensive data center can keep operating after its owner's valuation collapses. The technology, the business and the investment price are not the same thing. USA Today's explainer asks what happens when this gap closes. The latest company accounts show why the question matters without settling it. Amazon reported strong cloud growth alongside negative trailing-year free cash flow. Alphabet's third-quarter free cash flow was negative, but its trailing-year figure remained positive. Microsoft's operating cash flow exceeded its cash purchases of property and equipment. Periods and accounting definitions matter; none of these measures isolates AI alone. If expectations break, the first loss may be in share prices and the cost of raising money. A second stage could bring delayed construction, reduced chip orders and pressure on suppliers or workers. A more dangerous stage would involve borrowers unable to meet fixed obligations, spreading losses through creditors. These are possible transmission channels, not an automatic sequence. Strong balance sheets, customer payments and useful capacity can interrupt it. My current reading is an uneven funding shakeout through 2027, with the investment test continuing into 2028 as capacity and cash-flow promises mature. That is a conditional editorial forecast, not a known crash date. I would become more concerned if multiple major platforms reduced spending because monetization disappointed. I would become less concerned if cash conversion improved over successive quarters while demand held up. The honest question is not whether someone can name the day of the pop. It is which promises require the next round of money to arrive on time.