Siemens and P&G announced on 18 September 2026 that their VIC inspection platform commissions new deployments 5-10x faster. Re-read through Amdahl's law, accelerating the model stage (assumed 25 % share) tenfold shortens the whole by only 1.29x (22.5 %). For 5x to hold the accelerated scope must exceed 88.9 %, and 10x at a partial factor of 5 is arithmetically impossible. The bottleneck is not AI but the standardisation of lighting, mechanics, integration and handover.