Evolutionary pressures have accustomed humans to see the world as a static pie. If somebody gets a larger slice of the pie, somebody else inevitably gets a smaller slice. A particular family or city may prosper, but humankind as a whole is not going to produce more than it produces today. Accordingly, traditional religions such as Christianity and Islam sought ways to solve humanity’s problems with the help of current resources, either by redistributing the existing pie, or by promising a pie in the sky.
