The Red Car Theory
Luiz Firmino, CISSP, CISM, CRISC, CCISO
Global CISO, Information Security Director at FEMSA Proximity and Health
The Red Car Theory is a widely used metaphor to illustrate how selective perception and focus influence the way people notice specific aspects of their surroundings. Also known as the "Red Car Theory" or the "Baader-Meinhof Phenomenon," this theory suggests that when someone directs their attention to something specific — like a red car — they start noticing that element more frequently in their daily life. This phenomenon doesn't mean there are actually more red cars on the road, but rather that the brain has started giving more importance to them amid the vast array of stimuli in the environment.
The Red Car Theory reveals how our minds are shaped by our attention and how our current interests influence our perception of the world. This phenomenon exemplifies how the brain processes information and how, by choosing to focus on specific aspects of life, we end up "attracting" more of that element. Whether it’s events, objects, or emotions, what we focus on tends to appear more frequently — not because it's truly more present, but because our brain prioritizes it amid the constant influx of daily stimuli.
The Origin and Concept of the Theory
The phenomenon can be explained by how the brain works, specifically through the Reticular Activating System (RAS). The RAS plays a role in filtering information so that only relevant stimuli reach our conscious awareness. When something catches our attention and becomes significant — such as considering buying or wanting a red car — the RAS begins highlighting that information among other, less relevant data. Thus, the brain starts prioritizing the perception of any red car within the person’s field of vision.
For example, when thinking of buying a red car, you begin to see more cars of that color on the streets. This phenomenon extends to various areas of life and can be seen in situations like:
The Baader-Meinhof Phenomenon
The Red Car Theory is a practical example of the Baader-Meinhof Phenomenon, which occurs when, after being exposed to a concept or object for the first time, someone starts noticing it everywhere. This unusual name originates from an incident in the 1970s when a user on an online forum reported reading about the Baader-Meinhof terrorist group and then, the next day, saw another mention of the group in a completely unrelated place.
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The Theory and the Psychology of Selective Attention
Psychologically, the phenomenon is related to selective attention. In a world saturated with information, the human brain must filter out what’s most relevant, and this filter is influenced by interests, emotions, and needs. For example:
Applying the Red Car Theory in Practice
The Red Car Theory is also used in coaching, positive psychology, and personal development. Many coaches encourage their clients to focus on specific goals, ideas, or objectives, believing that the human brain "attracts" information and opportunities aligned with what a person focuses on. This approach is based on the premise that by thinking about positive things and desired goals, people begin to "notice" more signs and opportunities to achieve those goals.