Nvidia's turn from chip vendor to the buildout's lender of last resort: the $250-500B OpenAI financing guarantee (figure unresolved), equity stakes across its own customer base (Nebius 9.3%, Naver $1B, Intel $5B, Groq ~$20B licensing), and the first market pushback (NVDA -4%, CDS wider, 07-27). Track: the guarantee's actual structure and figure, whether rating agencies treat it as debt-equivalent, and each new customer-equity position. Sits inside the circular-financing story but is its own actor-move.
The coordinate this thread is about: above the diagonal, an actor moves more economy than it commits — size = weight, heat = burn, ring = sector. Click a mark for its receipts.

ai-circular-financing-risk (ben-steer: “thread it”).