Counterfactuals Are Made True By Laws, Not Possibilities

Counterfactual claims (e.g., 'if I had let go of the rock it would have fallen') are made true not by ghostly unactualized events but by the actual laws of nature: possibilities do not exert pressure on actuality because only actual things push things around; the laws determine which counterfactuals are true, so possibility is grounded in laws rather than laws in possibility.