What happens when you put munchkins in a room with two hidden cameras and a marshmallow? They have a really tough time not eating the squishy white poof, even if they know they'll be rewarded with more if they resist. We saw this video making the rounds recently but thought it was too good not to share this morning. For more psychoanalysis on delayed gratification as expressed through air-puffed gelatin, read this piece by Jonah Lehrer in the New Yorker. The video, after the jump.