abstract As history shows, some human beings are capable of acting very immorally. 1 Technological advance and consequent exponential growth in cognitive power means that even rare evil individuals can act with catastrophic effect. The advance of science makes biological, nuclear and other weapons of mass destruction easier and easier to fabricate and, thus, increases the probability that they will come into the hands of small terrorist groups and deranged individuals. Cognitive enhancement by means of drugs, implants and biological (including (...) genetic) interventions could thus accelerate the advance of science, or its application, and so increase the risk of the development or misuse of weapons of mass destruction. We argue that this is a reason which speaks against the desirability of cognitive enhancement, and the consequent speedier growth of knowledge, if it is not accompanied by an extensive moral enhancement of humankind. We review the possibilities for moral enhancement by biomedical and genetic means and conclude that, though it should be possible in principle, it is in practice probably distant. There is thus a reason not to support cognitive enhancement in the foreseeable future. However, we grant that there are also reasons in its favour, but we do not attempt to settle the balance between these reasons for and against. Rather, we conclude that if research into cognitive enhancement continues, as it is likely to, it must be accompanied by research into moral enhancement. (shrink)

Centre for Applied Philosophy and Public Ethics, The Australian National University, LPO Box 8260, ANU, Canberra ACT 2601, Australia. Email: michael.selgelid{at}anu.edu.au ' + u + '@ ' + d + ' '/ /- ->. Home page: http: //www.cappe.edu.au/staff/michael-selgelid.htmThis article advocates the development of a moderate pluralist theory of political philosophy that recognizes that utility, liberty and equality are legitimate, independent social values and that none should have absolute priority over the others. Inter alia, such a theory would provide a principled (...) means for striking a balance, or making trade-offs, between these values in cases of conflict. Recent developments in public health ethics have made progress in thinking about how to make trade-offs between liberty and utility in particular. While public health ethicists often claim that the least restrictive alternative should be used to achieve the public health goal in question, I argue that a plausible but under-recognized idea is that the least restrictive alternative might sometimes involve improvement of global health via redistributive taxation—i.e., rather than coercive social distancing measures. I conclude by demonstrating that the proportionality principle leaves open the question of when exactly utility outweighs liberty or vice versa—and I argue that, rather than speaking about the morality of liberty-infringing public health interventions in categorical/binary terms, it would be more fruitful and realistic to think and speak about the degree to which a liberty-infringing public health intervention is morally appropriate. CiteULike Connotea Del.icio.us What's this? (shrink)