 For example, in the First Meditation Descartes entertains a number of possibilities to the effect that we might be mistaken about results that are perfectly evident to us. One such possibility is that we have been created by a supremely good God but that, for reasons unbeknownst to us, our nature is such that we “go wrong every time [we] add two and three or count the sides of a square, or in some even simpler matter” (AT 7:21, CSM 2:14). Another is that we have not been created by God but have “arrived at [our] present state by fate or chance or a continuous chain of events” (AT 7:21, CSM 2:14). A third is that we are constantly deceived by a malicious demon (AT 7:22, CSM 2:15). Descartes mentions all of these possibilities to set up his Third Meditation point that until we know what made our minds, we are not in a position to trust them and so not in a position to know anything at all (AT 7:36, CSM 2:25). None of these is an actual possibility, though Descartes allows that we may not appreciate this until later: