Moral Bioenhancement and Free Will: Continuing the Debate.

This article continues and expands differences I have with Ingmar Persson and Julian Savulescu concerning issues of moral bioenhancement and free will. They have criticized my conception of voluntary moral bioenhancement, claiming that it ignores the extent to which freedom is a matter of degree. Here, I argue that freedom as a political concept (or as one that is analogous to a political concept) is indeed scalar in nature, but that freedom of the will is to be understood as a threshold concept and therefore not as subject to degree. Consequently, I contend, by asserting that freedom is a matter of degree, that Persson and Savulescu have not undermined my arguments favoring voluntary moral enhancement. In addition, I add three further arguments against compulsory moral bioenhancement.