We can define a hallucination, roughly, as a perception that exists in the absence of external stimulus and feels real. The question I’d like answered is, how do we determine that there is, in fact, a lack of external stimulus?
We cannot reasonably assert that our ordinary waking consciousness is necessarily the broadest, most accurate lens through which one perceives the external world.
The human nervous system has evolved over the last few hundred million years to deal with a very specific and specialized set of circumstances, namely survival on the plains of Africa.
Our brains seem to be best adapted to solving the problems of spotting predator and prey, picking berries and seeds, and finding shelter. Our consciousness, for the longest time, according to modern science, has been concerned with this very limited cross-section of what we’d now term as reality.
Now this mode of operation is not necessarily…
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