  For other liberal eugenics advocates the moral obligation to select or edit non-disease traits is grounded on social benefits. For instance, Buchanan (2011) is broadly optimistic about biomedical enhancement technologies – seeing them as not significantly unlike other enhancing societal innovations, such as literacy, numeracy and agriculture –  and argues in favor of funding research and development into a broad array of enhancements. Doing so will be socially good: good for economic growth to avoid problems of illiteracy, sickness, etc. that can accompany, for instance, lower intelligence and merely typical immune systems.