ABSTRACT
A proposition is dubitable when a certain sort of story can be constructed; dubitability is thus a logical property that a proposition has. A great deal of work in psychology in the last hundred years shows that incorrigibility thesis isn't plausible. A great deal of more recent work in psychology also denies Descartes' thesis of incorrigibility. Descartes saw clearly that the argument just described needs an additional premise, one that will bridge the gap between first-person psychological premises and a conclusion that describes the world outside the mind. Descartes thinks that atheists and agnostics have not considered the matter carefully enough. The concept of objective perfection allows some representations to be ranked higher than others. Philosophers argue over whether Descartes’ argument for the existence of God has a defect that goes beyond the fact that some of his premises are dubious.
