Sam Harris asks the questions over on his blog:

Much of your work focuses on the limitations of human intuition. Do you have any advice about when people should be especially hesitant to trust their intuitions?

When the stakes are high.  We have no reason to expect the quality of intuition to improve with the importance of the problem.  Perhaps the contrary: High-stake problems are likely to involve powerful emotions and strong impulses to action. If there is no time to reflect, then intuitively guided action may be better than freezing or paralysis, especially for the experienced decision maker. If there is time to reflect, slowing down is likely to be a good idea. The effort invested in “getting it right” should be commensurate with the importance of the decision.

Are there times when reasoning is suspect and we are wise to rely on our snap judgments?

As Gary Klein has emphasized (Sources of Power is one of my favorite books), true experts—those who have had sufficient practice to detect the regularities of their environment—may do better when they follow their intuition than when they engage in complex analysis. Tim Wilson and his collaborators have demonstrated that people who choose between two decorative objects do better by following their impulse than by protracted analysis of pros and cons. The critical test in that experiment is how much they will like the chosen object after living with it for a while. Affective forecasting based on current feelings appears to be more accurate than systematic analysis that eliminates those feelings.

What is the difference between the “experiencing self” and the “remembering self”?

The experiencing self lives in the moment; it is the one that answers the question “does it hurt?”  or “what were you thinking about just now?”  The remembering self is the one that answers questions about the overall evaluation of episodes or periods of one’s life, such as a stay in the hospital or the years since one left college. It involves both retrieval and temporal integration of diverse experiences. In the context of studies of subjective well-being, the happiness of the experiencing self is assessed by integrating momentary happiness over time (in the 19th century, the economist Francis Edgeworth spoke of “the area under the curve”). Experienced happiness refers to your feelings, to how happy you are as you live your life. In contrast, the satisfaction of the remembering self refers to your feelings when you think about your life.