It would not be surprising to find a philosopher deploying subjunctive conditionals in defence of a position or as part of an analysis of a concept. One might defend the view that events in the far past, or objects on the other side of the moon, are observable in principle by pointing out that if an observer had been present, or if an observer were on the other side of the moon, he would have made, or would make, certain observations. Similarly, someone might argue that a statement to the effect that there are mountains on the other side of the moon simply means “If there were an observer on the other side of the moon, he would have such and such experiences” (no doubt the claim would be that this subjunctive and many others gave the meaning of the original statement). In the same vein, one might argue that “x wants Φ” means “If such and such were the case, x would do A”.