One way to put a banner on the course of human civilization is to call it an escape from uncertainty ( most of which would have led us to death). Why do we live in societies? To save ourselves from the uncertainty of getting attacked... Why do we build houses? To mitigate the uncertainty of getting our food washed away in the rain... Why do we rear children? So that we don't fast ourselves to death in old age. So in all these cases, the sheer uncertainty in the future has made us make expensive investments in the present. And those who didn't give in to these fears took a risk. The pay-off of that risk is, however, independent of the past. In some cases, the risk turned out to be a golden gamble. Just like a flood washing away houses of people...the ones who hadn't built their houses were a little less sad. Risk can give an unexpected reward, but the higher the risk, the greater the return. But at times, the risk is otherwise. Instead of choice for the individual, it beco...