The Three Most Important Words We're Taught Not to Say

In this week's Frankly, Nate considers the ways in which our social species overvalues false-confidence rather than the more honest and inquisitive response of "I don't know." He invites us to consider the science behind this cultural bias towards certainty: from our biological response from the stress of "not knowing" to the reinforcing effects of motivated reasoning that ensnares even the smartest among us (especially the smartest among us).

Overconfidence and the desire for quick answers have been the root cause of many of humanity's disasters, from the space shuttle Challenger explosion to the Deep Water Horizon...