 This proposal has difficulty handling the fact that one may adopt epistemic attitudes to a conditional of varying degrees of closeness to certainty. I may be close to certain, but not completely certain, that Jane will accept if she is offered the job, that if I have the operation I will be cured, etc. Not all the relevant \(A\)-possibilities are \(C\)-possibilities. On this proposal, in these circumstances the conditionals are clearly, definitely false, and should be completely rejected, and hence not something one should be close to certain of. This point holds for any kind of strict conditional — any kind of “must”. Stalnaker (1981 p. 100) made essentially the same point, about counterfactuals, comparing his view with Lewis’s. On a strict-conditional account, the following exchange should be in order: 