2 ideas from Daniel T. Levin, each explained in a minute and credited to the original work. Free on Savvy.
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
Daniel Simons and Daniel Levin had an experimenter ask pedestrians for directions; while a door was carried between them, briefly blocking the view, the asker was secretly replaced…
— Daniel J. Simons, Daniel T. Levin, Failure to detect changes to people during a real-world interaction