(Sep 9, 2021 07:59 PM)Leigha Wrote: So, our brains basically ''construct'' a reality for us to perceive? Hmm, where does objective reality factor in ...or doesn’t it? lol
Indirect realism entails that there is an external world that is being represented by the brain's phenomenal products. In the context of reifying abstract physics, that realm would consist of events transpiring in quantum fields (i.e., quite different from the perceived environment).
Alternatively, however, one can view the objectivity of the visible world as consisting of its coherence, the reliability of its occurrences and entities, the inability to affect it by personal wishes or will alone, the consensus of it also appearing to other observers (inter-subjectivity), and so-forth.
A metaphysics counterpart of "external world" is kind of superfluous, anyway, since it can only be rationally inferred and never proven by experience. The latter kind of evidence, along with the conscious observer itself, would be eliminated by the very nature of a mind-independent or non-represented version of the world, if one could "step outside the skull" into it.[1]
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[1] Actually, death in a materialist context is just that -- consciousness disappears and so does the manifestation of everything else. One encounters what non-mental existence normally is to itself: Not even a presentation of nothingness. (That is, if the observer could still contradictorily be around to validate that situation.)