Fill in the Blanks 104-testOnline version 104-test by Farhad Key 1 Interventions better leads improving led those events imagining informative new imagine also Want to know what will make you happy ? Then ask a total stranger ? or so says a study from Harvard University , which shows that another person's experience is often more than your own best guess . The study , which appears in the current issue of Science , was by Daniel Gilbert , professor of psychology at Harvard and author of the 2007 bestseller Stumbling on Happiness , along with Matthew Killingsworth and Rebecca Eyre , of Harvard , and Timothy Wilson of the University of Virginia . " If you want to know how much you will enjoy an experience , you are off knowing how much someone else enjoyed it than knowing anything about the experience itself , " says Gilbert . " Rather than closing our eyes and the future , we should examine the experience of who have been there . Previous research in psychology , neuroscience , and behavioral economics has shown that people have difficulty predicting what they will like and how much they will like it , which them to make a wide variety of poor decisions . aimed at the accuracy with which people future have been generally unsuccessful .