english: Now, as a researcher, if you're lucky enough to stumble on an effect that replicates around the world in children and adults alike, you start to wonder: Could this be part of human nature?
non_english: Kao istraživač, ako imate dovoljno sreće da naletite na efekat koji se ponavlja širom sveta kod dece i kod odraslih, počinjete da se pitate da li bi to mogao biti deo ljudske prirode.