Full Idea
Prior, Pargetter and Jackson have argued convincingly for the thesis that all dispositions must have causal bases.
Gist of Idea
All dispositions must have causal bases
Source
David Lewis (Finkish dispositions [1997], II)
Book Reference
Lewis,David: 'Papers in Metaphysics and Epistemology' [CUP 1999], p.140
A Reaction
[Their paper is 1982] This key thesis is tackled by modern defenders of powers. The question is not who has the best arguments, but who offers the most coherent picture. What is a 'causal basis'? What sort of thing could be primitive or fundamental?