I love this guy's research (I've written about it before a few times). It's amazing to see how bad we are at predicting what will or won't make us happy, and how long things will affect us.
But I always wonder about the construct validity of these studies. Are they really measuring what we mean by 'happiness'?
If you had the resources at your disposal, how would YOU scientifically study something like happiness, or 'a flourishing life', or contentment, or fulfillment, or whatever?
