Full Idea
The concept of power can be used to explain the temporal directionality of the concept of causality, and, at the same time, makes that causality a genuine case of natural necessity.
Gist of Idea
Powers can explain the direction of causality, and make it a natural necessity
Source
Harré,R./Madden,E.H. (Causal Powers [1975], 7.V)
Book Reference
Harré,R/Madden,E.H.: 'Causal Powers: A Theory of Natural Necessity' [Blackwell 1975], p.135
A Reaction
I'm not sure that powers actually 'explain' causal direction. It seems more like transferring the directionality from the process to its source. You are still left with brute directionality.
Related Idea
Idea 15293 If explanation is by entailment, that lacks a causal direction, unlike natural necessity [Harré/Madden]