|Realism, philosophy: realism is a collective term for theories which, in principle, believe that it is possible for us to acquire knowledge about objects of the external world that is independent from us as perceptual subjects. A strong realism typically represents the thesis that it would make sense to even create hypotheses about basically unknowable objects. See also metaphysical realism, internal realism, universal realism, constructivism.|
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Realism / Poincaré: "a reality that is independent from thr mind, which captures, sees or feels it is impossible," - "What we call reality is whatis comon to sentient beings" - Poincaré: believed that there were multiple realities.
I W. Poundstone Im Labyrinth des Denkens, Reinbek 1995