Humans often behave altruistically towards strangers with no chance of reciprocation. From an evolutionary perspective, this is puzzling. The evolution of altruistic cooperative behavior—in which an organism’s action reduces its fitness and increases the fitness of another organism —only makes sense when it is directed at genetically related organisms or when one can expect the favor to be returned. Therefore, evolutionary theorists such as Sober and Wilson have argued that we should revise Neo-Darwininian evolutionary theory. They argue that human altruism (...) evolved through group selection in which groups of altruists were naturally selected because they had a comparative advantage over other groups. Wilson and Sober’s hypothesis attracted followers but is rejected by most of their peers. The heated debate between advocates and critics of group selection often suffers from a lack of conceptual clarity. In response, I set out to clearly distinguish ‘genetic’ from ‘cultural’ group selection and argue that the latter does not face the potentially debilitating problems plaguing the former. I defend the claim that human altruistic dispositions evolved through cultural group selection and gene-culture coevolution and offer empirical evidence in support. I also argue that actual altruistic behavior often goes beyond the kind of behavior humans have evolved to display. Conscious and voluntary reasoning processes, I show, have an important role in altruistic behavior. This is often overlooked in the scientific literature on human altruism. (shrink)

ABSTRACT In this article I will be discussing what altruism is, distinguishing altruistic motivations and altruistic behaviour. Pure altruism is when the motivation to benefit another is exclusively to increase the other's welfare, and impure altruism is when the motivation to benefit another is solely to increase your own wellbeing, or includes on some level, increasing your own welfare. Soft altruism is helping behaviour and robust altruism is improving the welfare of another individual at the expense of the altruist. Having (...) made these distinctions I move on to show that altruism is a requirement of morality. I argue that the three main principles of morality are not only compatible with, but also recommend soft altruism. Finally I argue that the probability of people continuing to practise altruistic acts is higher when we are purely motivated, and if that is the case not only classic moral enhancement but also biotechnological moral enhancement can have a role in bringing people over to the altruistic side, stimulating their ‘other regarding ’ motivations, thus contributing to spreading altruistic behaviour and morality throughout the world. RESUMO Neste artigo, discutirei o que é altruísmo, distinguindo motivações altruístas e comportamento altruísta. Puro altruísmo é quando a motivação para beneficiar outra pessoa é exclusivamente aumentar o bem-estar do outro, e altruísmo impuro é quando a motivação para beneficiar outra pessoa é somente aumentar o seu próprio bem-estar, ou inclui este aumento do bem-estar próprio. Soft altruísmo é simplesmente ajudar o outro, enquanto altruísmo robusto épromover a melhoria do bem-estar de outro indivíduo ao custo do seu próprio bem-estar. Tendo feito essas distinções, mostro que o altruísmo é uma exigência da moralidade. Argumento aqui que os três principais princípios da moralidade são não apenas compatíveis com soft altruísmo mas também o recomendam. Finalmente, argumento que a probabilidade de as pessoas continuarem praticando atos altruístas é maior quando somos puramente motivados, e, se este é o caso, não apenas o aprimoramento moral clássico, mas também o aprimoramento moral biotecnológico pode cumprir o papel de trazer pessoas para o lado do altruísmo, estimulando suas motivações “other regarding” e assim contribuindo para difundir o comportamento altruísta e a moralidade pelo mundo. (shrink)