How to build a better World
Let's start by observing that, when someone does something that is easy or inexpensive for him, that creates a benefit way bigger to someone else, the overall welfare in the World increases. We would like that most people would apply the above: do a little kind act when the benefit for the others is way greater than his effort. In theory, his reward from others that would do the same to him should be much higher than his loss in helping others. For example, if you realize other people would lose a lot of time without some information, you can do the extra step to inform them, even if this was not your duty. Your time investment is small, but even one individual that is helped saves way more time. When you manage to help many people, the welfare return of investment can be orders of magnitude higher. This idea is not new, some people are even practice it, but too few unfortunately. There are practical problems that prevented this practice to become more widely used. However,...