This fascinating New York Times article by Heidi Julavits provides insight into how we evaluate and react to risk.
“The problem — the primary human problem — is that people are susceptible, prideful, bullheaded, egotistic, dumbstruck and lazy. Add to this doomed slurry a little avalanche training (or what used to qualify as avalanche training, and its focus on analyzing snowpack), and people make terrible decisions with greater frequency and confidence.”