Probability is an interesting thing. It’s relatively easy to evaluate the probability of a particular event happening but, when it comes down to it, we humans are much more concerned with our own experience. If we experience an unlikely event we tend to massively over-estimate the likelihood of that event happening again. For example, last week I was hit on the head by a golf ball. There I was waiting for someone else in my group to play, minding my own business, when an errant drive from an adjacent hole landed a direct blow to my skull. Fortunately, this was a good inch above either of the points where it could have killed me (the temple and the eye). The probability of me being hit was tiny. I was playing golf with friends who I play with only once or twice a year. We had never played the course before. […]

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