This is a healthy reset for the narrative.

The big four's Q1 earnings reports mark the end of an era: AI can't just rely on 'faith' and 'PPT' to secure limitless valuation tolerance. It needs to start addressing classic industrial-era questions: return on investment (ROI), unit economics, and cash flow. Over $600 billion in annual capital expenditures is no longer seen as a ticket to the stars but a heavy anchor that must be audited. The market is pricing this cutting-edge competition the old-fashioned way: • Alphabet: has proven the viability of 'AI equals cash, traffic equals profit,' setting a new benchmark. • Microsoft: faces a tough examination of 'time cost' with its logic of 'first occupy the niche, then realize profits.' • Amazon: the poise and certainty of infrastructure providers are once again validated as wisdom that transcends cycles. • Meta: is facing harsh scrutiny over the justification of its massive investments, as it uses AI as an internal cost optimization tool rather than a direct revenue-generating product.