2 ideas from Daniel J. Simons, each explained in a minute and credited to the original work. Free on Savvy.
In 1999, Daniel Simons and Christopher Chabris had people count passes in a basketball video while a person in a gorilla suit walked through the middle of the court, stopped, and t…
— Daniel J. Simons and Christopher F. Chabris, Gorillas in Our Midst: Sustained Inattentional Blindness for Dynamic Events
In a 1998 study, researchers had someone stop a pedestrian to ask for directions. Seconds later, a door carried between them by two "workers" briefly blocked the view — and a compl…
— Daniel J. Simons and Daniel T. Levin, Failure to Detect Changes to People During a Real-World Interaction