Big Tech crossed into debt-financed AI infrastructure

Alphabet just issued yen bonds to fund AI capex. Total debt now above $100B. Full-year capex outlook: $180 to $190B. Another step-up flagged for 2027. Here is what that means. Big Tech has quietly crossed a line. AI infrastructure is no longer a cash-flow expense. It is a financing expense. They are borrowing against future dominance to build the layer you are renting. And that is the part founders keep missing. When people cite $700B of infrastructure capex this year, the instinct is to feel validated. Big companies believe in AI. But the math runs the other way. When your landlord borrows $100B to build the building, your rent does not go down. Your multiples get benchmarked against their balance sheet. Every application-layer startup is pricing inside a cost structure it did not choose and cannot negotiate. So when an LP asks why your margins are soft at Series A, the answer is not your burn rate. The answer is Alphabet's bond issuance. The application layer is not competing with Google. It is renting from Google.