Joshua Greene has argued that the empirical findings of cognitive science have implications for ethics. In particular, he has argued (1) that people’s deontological judgments in response to trolley problems are strongly influenced by at least one morally irrelevant factor, personal force, and are therefore at least somewhat unreliable, and (2) that we ought to trust our consequentialist judgments more than our deontological judgments when making decisions about unfamiliar moral problems. While many cognitive scientists have rejected Greene’s dual-process theory of (...) moral judgment on empirical grounds, philosophers have mostly taken issue with his normative assertions. For the most part, these two discussions have occurred separately. The current analysis aims to remedy this situation by philosophically analyzing the implications of moral dilemma research using the CNI model of moral decision-making – a formalized, mathematical model that decomposes three distinct aspects of moral-dilemma judgments. In particular, we show how research guided by the CNI model reveals significant conceptual, empirical, and theoretical problems with Greene’s dual-process theory, thereby questioning the foundations of his normative conclusions. (shrink)

ENGLISH. From statements about what is the case we cannot derive statements about what ought to be. This is only one way in which we can describe the dichotomy between Is and Ought that has preoccupied philosophers since Hume to the present day. However, relatively little attention has been paid to the question of whether statements about what ought to be may commit us to, or even imply, statements about what is. This paper aims to address this shortcoming. It pursues (...) two goals. First, it tries to show that rationality requires empirical evidence about what is if we have normative beliefs about what we ought to do. Second, it tries to draw two further conclusions for (academic) philosophers. On the one hand, in our research on normative statements, we are rationally required to consider relevant empirical findings. On the other hand, as individuals we are rationally required to intend to act in accordance with our normative beliefs. -/- DEUTSCH. Aus Aussagen darüber, was der Fall ist, lassen sich keine Aussagen darüber ableiten, was sein sollte. Dies ist nur eine Beschreibung der Dichotomie von Sein und Sollen, die Philosophen seit Hume bis heute beschäftigt. Umgekehrt hat die Frage relativ wenig Beachtung gefunden, ob Aussagen darüber, was sein sollte, zu Aussagen darüber, was ist, führen können oder sie gar implizieren. Der vorliegende Beitrag möchte diesem Manko entgegentreten. Er verfolgt zwei Ziele: Erstens versucht er im Allgemeinen zu zeigen, dass normative Überzeugungen darüber, was man tun sollte, unter rationalem Gesichtspunkt empirischer Evidenz bedürfen. Zweitens versucht er, spezifisch für uns (akademisch) Philosophierende zwei weitere Folgerungen zu ziehen. Einerseits sind wir in unserer Forschung über normative Aussagen rational verpflichtet, relevante empirische Befunde zu beachten. Andererseits sind wir als Individuen rational verpflichtet zu beabsichtigen, selbst unseren normativen Überzeugungen entsprechend zu handeln. (shrink)