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THOUGHT EXPERIMENT DEFINED

A thought experiment is a mental exercise where you imagine a situation or scenario to explore an idea, test a theory, or examine a problem. It does not involve physical experiments or data. Instead, it uses reasoning, imagination, and logic to draw conclusions or raise important questions.

INATTENTIONAL BLINDNESS: https://medicalexecutivepost.com/2025/03/11/inattentional-blindness/

Colorblind Neuroscientist [Inverted Spectrum Problem]

Sometimes referred to as the Inverted Spectrum Problem or the Knowledge Argument, this thought experiment is meant to stimulate discussions against a purely physical view of the universe, namely the suggestion that the universe, including mental processes, is entirely physical. This thought experiment tries to show that there are indeed non-physical properties — and attainable knowledge — that can only be learned through conscious experience.

The originator of the concept, Frank Jackson, explains it this way:

Mary is a brilliant scientist who is, for whatever reason, forced to investigate the world from a black and white room via a black and white television monitor. She specializes in the neuro-physiology of vision and acquires, let us suppose, all the physical information there is to obtain about what goes on when we see ripe tomatoes, or the sky, and use terms like ‘red’, ‘blue’, and so on. She discovers, for example, just which wavelength combinations from the sky stimulate the retina, and exactly how this produces via the central nervous system the contraction of the vocal cords and expulsion of air from the lungs that results in the uttering of the sentence ‘The sky is blue’…What will happen when Mary is released from her black and white room or is given a color television monitor? Will she learn anything or not?

Put another way, Mary knows everything there is to know about color except for one crucial thing: She’s never actually experienced color consciously. Her first experience of color was something that she couldn’t possibly have anticipated; there’s a world of difference between academically knowing something versus having actual experience of that thing.

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