Greene and Cohen also argue that the legal system does not require this libertarian interpretation. Rather, they suggest that only retributive notions of justice, in which the goal of the legal system is to punish people for misdeeds, require the libertarian intuition. Many forms of ethically realistic and consequentialist approaches to justice, which are aimed at promoting future welfare rather than retribution, can survive even a hard determinist interpretation of free will. Accordingly, the legal system and notions of justice can thus be maintained even in the face of emerging neuroscientific evidence undermining libertarian intuitions of free will.