  Let \(p\) be the claim that when others look at ripe tomatoes, their experiences have \(Q_{R}\). Let \(S\) be a spectrum inversion scenario with the following simple feature: when others look at ripe tomatoes, their experiences have \(Q_{G}\), not \(Q_{R}\). (So \(p\) and \(S\) are incompatible.) Consider the following skeptical argument: