Abstract

This essay addresses two aspects of Persson and Savulescu's case for moral enhancement: 1) the precise technological nature of ultimate harm, particularly as it applies to the ecological crisis, and 2) what is at stake in the solution they propose. My claim is that Persson and Savulescu's treatment of both issues is inadequate: the ecological crisis is a more complex phenomenon than they suppose, and more is at stake in moral enhancement than they claim. To make my case I draw on the work of Hans Jonas, who presciently and insightfully dealt with related questions. Jonas’ philosophy unites bioethical, technological, and environmental concerns and so offers a useful contrast to Persson and Savulescu's proposal. If my analysis is correct then we have both practical and principled reasons to be sceptical about the prospect of moral bioenhancement, which I assume, for the sake of argument, to be feasible.1.