In a recent paper Causal Asymmetry, Douglas Ehring has proposed an intriguing solution to the vexing problem of causal asymmetry. The aim of this paper is to show that his theory is not satisfactory. Moreover, the examples that I use in showing the defect of Ehring's theory also indicate that the counterfactual analysis of causation has a problem that cannot be remedied by Marshall Swain's suggested refinement of the counterfactual analysis of causation in Causation and Distinct Events.

Most writers on causation have distinguished causal relations or natural necessities from mere correlations or accidental generalizations. I shall assume that this is a valid distinction. However, a "Dogma" of empiricism has been that natural necessity does not amount to logical necessity and that causes are contingently related to effects. In this paper I shall argue that this Dogma is mistaken.