religious utopia. A wide variety of intentional communities with some type of faith-based ideas have also started across the world. Anthropologist Richard Sosis examined 200 communes in the 19th-century United States, both religious and secular (mostly utopian socialist). 39 percent of the religious communes were still functioning 20 years after their founding while only 6 percent of the secular communes were. The number of costly sacrifices that a religious commune demanded from its members had a linear effect on its longevity, while in secular communes demands for costly sacrifices did not correlate with longevity and the majority of the secular communes failed within 8 years. Sosis cites anthropologist Roy Rappaport in arguing that rituals and laws are more effective when sacralized. Social psychologist Jonathan Haidt cites Sosis's research in his 2012 book The Righteous Mind as the best evidence that religion is an adaptive solution to the free-rider problem by enabling cooperation without kinship. Evolutionary medicine researcher Randolph M. Nesse and theoretical biologist Mary Jane West-Eberhard have argued instead that because humans with altruistic tendencies are preferred as social partners they receive fitness advantages by social selection, with Nesse arguing further that social selection enabled humans as a species to become extraordinarily cooperative and capable of creating culture. The Book of Revelation in the Christian Bible depicts an eschatological time with the defeat of Satan, of Evil and of Sin. The main difference compared to the Old Testament promises is that such a defeat also has an ontological value (: "Then I saw 'a new heaven and a new earth,' for the first heaven and the first earth had passed away, and there was no longer any sea...'He will wipe every tear from their eyes. There will be no more death' or mourning or crying or pain, for the old order of things has passed away") and no longer just gnosiological (Isaiah : "See, I will create/new heavens and a new earth./The former things will not be remembered,/nor will they come to mind"). Narrow interpretation of the text depicts Heaven on Earth or a Heaven brought to Earth without sin. Daily and mundane details of this new Earth, where God and Jesus rule, remain unclear, although it is implied to be similar to the biblical Garden of Eden. Some theological philosophers believe that heaven will not be a physical realm but instead an incorporeal place for souls. Golden Age The