I love Brain Pickings, this one is a #mustread on Daniel Kahneman — author of the indispensable Thinking, Fast and Slow, one of the best psychology books of 2012 — who examines “the marvels and the flaws of intuitive thinking.”

“If you want to characterize how something is done, then one of the most powerful ways of characterizing how the mind does anything is by looking at the errors that the mind produces while it’s doing it because the errors tell you what it is doing. Correct performance tells you much less about the procedure than the errors do.”