In a recent discussion we talked about (as often happens) the unreliability of our senses as objective evaluation systems, and the voluntary but above all involuntary effect of the context and secondary information that the brain processes and of which we are almost never perfectly aware . Because that's how our brain processes reality, and that's why it's so great, but that's also why we can't trust it as an objective measurement tools.
The example of the dress that is gold and white for half the population and black and blue for the other half is a perfect example.
For a while the case of this dress broke out on the internet, it seemed that for some the dress was absolutely black and blue, for others it was white and gold, and anyone on the two factions didn't understand how something could seem so different to the opposite faction, EVERYONE would have sworn on their children that they were right and that it was impossible otherwise.
The explanation is as incredibly fascinating as it is banal.
Obviously everyone saw the same objective color, and a measurement tool and would simply identify the color, however those who saw the white and gold dress interpreted it as a dress IN THE SHADOW with sunlight behind it, while those who saw it as blue and black saw a dressed IN FULL SUN.
The brain does not read a value and stop, but ALWAYS, INEVITABLY AND UNFAILURELY interprets it in context and processes it according to a series of secondary information of which we are almost never aware but which direct our perception absolutely
