Deterministic Chance

The author argues that there are non-trivial objective chances (that is, objective chances other than 0 and 1) even in deterministic worlds. The argument is straightforward. I observe that there are probabilistic special scientific laws even in deterministic worlds. These laws project non-trivial probabilities for the events that they concern. And these probabilities play the chance role and so should be regarded as chances as opposed, for example, to epistemic probabilities or credences. The supposition of non-trivial deterministic chances might seem to land us in contradiction. The fundamental laws of deterministic worlds project trivial probabilities for the very same events that are assigned non-trivial probabilities by the special scientific laws. Glynn argues that any appearance of tension is dissolved by recognition of the level-relativity of chances. There is therefore no obstacle to accepting non-trivial chance-role-playing deterministic probabilities as genuine chances. – 1. Introduction; – 2. Schaffer's Incompatibilist Argument : 2.1 Chance and credence; 2.2 Chance and possibility; 2.3 Chance and laws; – 3. Special Scientific Laws : 3.1 Probabilistic special scientific laws in deterministic worlds; 3.2 Lewis's Humean analysis of laws; 3.3 Special scientific laws and the law role; – 4. Deterministic Chance : 4.1 Chance and laws again; 4.2 Chance and credence again; 4.3 Chance and possibility again; – 5. Chance and Causation; – 6. Conclusion. – Appendix: Times, Levels, and Chance Setups. M.-M. V.