The video in the first link is undeniably funny... and cute:

http://idle.slashdot.org/story/09/08/13/1644229/Joachim-De-Posada-Talks-About-Delayed-Gratification?art_pos=3


Great write up about the original PHD who put the experiement together:

http://www.newyorker.com/reporting/2009/05/18/090518fa_fact_lehrer?currentPage=all



Cheers,