Is the Examined Life the Same One You Lived?
Daniel Kahneman: The riddle of experience vs. memory
I wanted to bookmark this so I don't forget where I saw it. The short version is that you would think that upon reflection (like if you "take stock" of your life) the overall feeling would be a culmination of what you experience moment to moment.
But it turns out that the two things are only slightly connected and in fact the reflective self rewrites what you actually experienced (or so the studies say). Which almost sounds like one of those wacky physics riddles where the observation changes the event merely by looking at it. I wonder what Socrates would say?