David Bourget (Western Ontario)
David Chalmers (ANU, NYU)
Rafael De Clercq
Jack Alan Reynolds
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Synthese 184 (3):387–405 (2012)
In this paper we shed new light on the Argument from Disagreement by putting it to test in a computer simulation. According to this argument widespread and persistent disagreement on ethical issues indicates that our moral opinions are not influenced by any moral facts, either because no such facts exist or because they are epistemically inaccessible or inefficacious for some other reason. Our simulation shows that if our moral opinions were influenced at least a little bit by moral facts, we would quickly have reached consensus, even if our moral opinions were affected by factors such as false authorities, external political shifts, and random processes. Therefore, since no such consensus has been reached, the simulation gives us increased reason to take seriously the Argument from Disagreement. Our conclusion is however not conclusive; the simulation also indicates what assumptions one has to make in order to reject the Argument from Disagreement. The simulation algorithm we use builds on the work of Hegselmann and Krause (J Artif Soc Social Simul 5(3); 2002, J Artif Soc Social Simul 9(3), 2006)
|Keywords||Hegselmann–Krause Disagreement Simulation Meta-ethics Moral realism Opinion dynamics|
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References found in this work BETA
Richard Boyd (1988). How to Be a Moral Realist. In G. Sayre-McCord (ed.), Essays on Moral Realism. Cornell University Press. 181-228.
Nicolai Hartmann (1967). Ethics. New York, Humanities Press.
Russ Shafer-Landau (2003/2005). Moral Realism: A Defence. Oxford University Press.
Folke Tersman (2006). Moral Disagreement. Cambridge University Press.
Citations of this work BETA
Aron Vallinder & Erik J. Olsson (2013). Do Computer Simulations Support the Argument From Disagreement? Synthese 190 (8):1437-1454.
Ulrich Krause & Rainer Hegselmann (2009). Deliberative Exchange, Truth, and Cognitive Division of Labour: A Low-Resolution Modeling Approach. Episteme 6 (2):130-144.
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