Prejudice uses a semi-logical thought procedure that is similar to the statistical and empirical methods used by science. For example, in NYC, super sized soft drinks were banned because these increased the risk of obesity.
Although the correlation of large soft drinks and obesity does occur for some people, this correlation does not apply to all. We can also find thin people who drank those drinks. Nevertheless, everyone is treated, by the ban, as though this correlation applies to all. This is how prejudice works.
The reason this form of prejudice occurs is due to applying logic to data points; statistical conclusions, that are not really points, but rather are more like large fuzzy statistical balls.
If we a draw a curve through two tiny points, we will get a very distinct line with a very specific slope. If we draw a curve through 2 large fuzzy balls, we can draw a more than one curve with different angles, since the large fuzzy balls are not points, but rather have statistical volume. This statistical volume, allows one to use logic, with odd angles, since even those curves can still touch two large fuzzy dice.
Prejudice against race, starts with certain stereotypes, that are based on some individual data. The stereotype does not treated this isolated data a distinct data points; specific to a few bad apples, but as statistical data balls with greater volume; applies to all. This allows us to use a biased curve, that touches the large data balls, in ways that it could not touch distinct data points.
Cigarettes cause cancer. This is true in many cases, but not in all cases. One can find exceptions. Yet, we will use the fuzzy dice prejudice data strategy, until a stereotype is assumed and is applied to all. It is hard to get rid of prejudice, when culture creates mixed signals in terms of the procedure.
The second half of the prejudice affect is connected to emotional thinking. This is where emotions become the fuel for thought. Fear and/or hate are the most common fuel for thought behind prejudice. When memory is created, emotional tags are added to the sensory content, when the memory is written to the cerebral matter. Our memories have both sensory content, as well as an emotional valance.
Since there are a limited number of emotions, used in the tagging and writing process, the emotional tags are recycled and will be used again and again for similar situations. For example, if you feel hungry, images of food will appear in the imagination based on your memory. Each data was tagged with the hunger tag. The hunger feeling narrows down our entire memory, to just those memories with the hunger tag. Our memory is written in layers, with each layer associated with a specific emotional tag. This layering of memory, allows us to focus on a narrow data layer, while being able to use the entire brain.
As an analogy, say our entire memory is like a white piece of paper with red and blue dots. The operating emotion is like putting in red sunglasses and looking at the paper with the dots. The red dots will disappear because of the red filter, and only the blue dots will be seen, but they will appear purple due to the red colored glasses. This layer is active.
In terms of prejudice, emotional thinking, by starting with an emotion, narrows down our the memory to a layer; red sunglasses affect. This makes the large fuzzy balls, appear sharper and/or come to focus, so the correlation seems valid based on that memory layer. The colored glasses, by narrowing down our entire memory to a layer eliminates much of the large fuzzy ball. Now the logic seems sound.
In culture, science tries to keep the fuzzy balls in play, in their entirety, by eliminating emotions from the analysis; dry logic. They then try to draw a line through the middle of the fuzzy ball. The correlation that reaches the masses, is usually provided by media, politics and business, all of which will add emotional inductions, such as fear, outrage, desire, since this sells soap or attracts votes. Emotional thinking takes over and the large science fuzzy data ball, appears to come to a focus. Now they seem applicable to illogical correlations; prejudice.