One of the things I find most fascinating (and personally relevant) about this pandemic is how each individual judges their risk of contracting COVID-19. As a rule, human beings are terrible judges of risk in today’s world. Our risk assessment ability evolved at a time when risks were pretty straightforward: Is the tiger chasing me? RUN AWAY NOW or die. We’re not well equipped to decide whether flying on an airplane, eating Thanksgiving with family members, or going for a walk with a friend could infect us with an invisible disease that can take up to two weeks to manifest itself — if it manifests any symptoms at all.