Waymo ride test revealed critical operational failure: vehicle stopped at green light for ~60 seconds, blocking traffic flow and drawing negative attention from other drivers. This type of edge case failure directly impacts scalability concerns for autonomous taxi services. If these incidents occur at any meaningful frequency, they create regulatory risk, insurance liability exposure, and damage unit economics through reduced rides per vehicle per day. Street-level adoption hinges on reliability matching human baseline performance. One minute of frozen decision-making in live traffic is not commercially viable at scale.