All the argument requires is that the spectrum inversion scenario is imaginable.
Let '\(X\)' abbreviate the definite description 'the quale distinctive of Humbert's experiences of red things' (by hypothesis, this definite description is coextensive with 'the quale distinctive of Nonvert's experiences of red things in the counterfactual inversion scenario').
The specific inversion scenario suggested by GRIMM is only one of several possible models of equal length that could explain the observed pattern.
And, in fact, many of the philosophical arguments that appeal to the possibility of an inversion scenario can make do instead by appealing to the actual shifted qualia scenario, hence avoiding potentially controversial claims about possibility.
A defender of the utility of an inversion scenario in an argument against functionalism might reply that the scenario's possibility does not merely rest on its conceptual coherence.
However, this is not the usual sort of inversion scenario (red is not mapped to green, for example).
In a typical spectrum inversion scenario, the spectral band 650 700nm remains red, and lemons remain yellow.[11] Second, even when properly taken as an inversion of experiences, one might suppose that the "spectrum inversion" function corresponds to flipping the spectrum over.
Block uses Inverted Earth in an argument against functionalism and representationalism (see subsections 3.1 and 3.2 below).[23] The qualia inversion scenarios discussed so far are merely hypothetical more cautiously, we do not know whether any of them obtain.[24] There are, however, "shifted" qualia scenarios that actually obtain.
Let \(S\) be a spectrum inversion scenario with the following simple feature: when others look at ripe tomatoes, their experiences have \(Q_{G}\), not \(Q_{R}\).
Philosophy is stuck with the terminology of 'spectrum inversion', but it is potentially misleading.[10] First, a spectrum inversion scenario sounds like one which inverts either the spectrum or the colors of objects, but it actually inverts neither.
