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Thesis: there must be at least two systems that can recognize a face.
E.g. A dog sees Odysseus sober on Monday, Wednesday and Friday, and drunk on the other days.
It can draw several conclusions: 1) That there are drunken and sober people
2) That a man can be drunk on one day, and sober on the other,
3) that Odysseus is such a person .
The conclusions 2 and 3 are not possible to learn logically from the course of events alone. In addition, it needs a (error-prone , but -perceived by him as reliable) source of identification ( Millikan).
Accordingly, a mirror cannot tell me what I look like, as long as I don t have another method to identify the face to be seen there as my own.
Darwins gefährliches Erbe Hamburg 1997
Spielarten des Geistes Gütersloh 1999