>>That said, certainty when asserted as a rule or law of nature does require explanation. In this case, I doubt any explanation offered would hold water, but that's an empirical issue.

OK, but there are many roads to happiness, many of which are different or even opposite to what we may believe. Just as most Americans do not need a passport because they know the US is the greatest nation on earth so there is no need to expose themselves to the outer badlands, some communities may be very happy with their consensus on other topics. Seems to me that in the end we are all responsible for our own happiness.