 Jonathan Bennett (2003) notes that when the antecedent of a conditional is not about a particular event, Lewis’s conditions provide the wrong results. For instance, if the antecedent is of the form If one of these events had not happened, then Lewis’s rules say that the nearest world where the antecedent is true is always the world where the most recent such event did not happen. But this does not seem to provide intuitively correct truth conditions for such conditionals. This need not bother Lewis’s larger project. For one thing, Lewis was not committed to there being a uniform similarity metric for all counterfactuals. Lewis could say that his default metric was only meant to apply to cases where the antecedent was about the happening or non-happening of a particular event at a particular time, and it wouldn’t have seriously undermined his larger project. Indeed, as we’ll see in Section 5.2 below, the counterfactuals he was most interested in, and for which these criteria of similarity were devised, did have antecedents concerning specific events.