New York City's placebo buttons and "The Post Hoc Fallacy"

Although, i think the thread is mostly off-topic as I think the point was the post hoc fallacy…but… Definitely not the case for LA. Recently during the LA auto-show I was downtown and they had traffic control people in the intersection to help with flow. A group gathered at the light waiting for it to change and assumed either someone likely had hit the button already or that the traffic person would wave everyone through. Instead, the pedestrian light never cycled, the cars got to go again and the traffic guard yelled at the crowd, ‘No one hit the button!?!’.