Human beings live in groups, are affected by the fortunes of their groups, and sometimes make sacrifices that benefit their groups. Does this mean that the human brain has been shaped by natural selection to promote the welfare of the group in competition with other groups, even when it damages the welfare of the person and his or her kin? If so, does the theory of natural selection have to be revamped to designate “groups” as units of selection, analogous to the role played in the theory by genes? Steven Pinker discusses the false allure of Group Selection in this long but very interesting read, explaining why it is not a “reasonable extension of evolutionary theory and a plausible explanation of the social nature of humans”.
Interesting. Maybe we’re not as selfish as we’ve been led to believe.