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Writer's pictureKlaas Bahnsen

Beyond Prediction: Explaining Astrology's Potential

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As a neuroscientist, I’ve spent my career advocating and advertising for evidence-based thinking. For example, I recently wrote here about the measurable effects of the eating disorder Anorexia Nervosa on brain structure and function. Data and reproducibility are my guiding stars, leaving little room for unverified claims.


It’s no surprise, then, that astrology—often dismissed as pseudoscience—fails to hold up here under the scrutiny of rigorous investigation. Yet, astrology remains culturally pervasive, offering comfort, entertainment, and guidance to millions. As we are starting the new year, it is important to ask: might there be value in the Horoscope after all?


This article doesn’t seek to validate astrology’s claims but to explore its surprising potential as a psychological tool. In the face of modern decision fatigue and an overwhelming world, astrology’s enduring appeal might stem not from celestial truth but from its ability to help us simplify choices and connect with others.


If you are interested in knowing more on astrology and mental health, you might be interested in this a recent article in ITM on by my colleague Daniela Giallanella on the power of the stars.


The Science of Astrology: A System Without Predictive Power


To address astrology’s claims, let’s start with the facts. A recent study sought to evaluate whether astrologers could reliably match astrological charts to individuals based on detailed personal profiles. The results? Disappointing for astrology enthusiasts.


In the study, 152 astrologers were given case files of actual individuals and asked to match them to one of five birth charts (which are maps of the sky at the exact time and place you were born and are believed to be able to predict your personality, strengths, and challenges in life). Despite their confidence, the results mirrored random guessing, with astrologers averaging only 2.4 correct matches out of 12. That’s the same as guessing randomly, like picking a number out of a hat.


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Even more striking was the lack of agreement among astrologers: incorrect answers rarely overlapped, suggesting little consistency in their interpretations. And experience has no effect: Experienced astrologers performed no better than less experienced ones, suggesting expertise does not enhance accuracy in this context.


It is important to note that the results are not peer-reviewed by experts in the field. But I encourage you to check the results yourself, as they are completely open to public scrutiny. You can even check if you might be better at astrological prediction than the tested individuals.


Indeed, these findings align with decades of research highlighting astrology’s predictive shortcomings:

  • Astrological predictions fail to exceed random chance.

  • Personality descriptions are overly general, capable of fitting almost anyone.

  • Expertise in astrology does not correlate with improved accuracy.


Nevertheless, while these results might be conclusive about astrology’s lack of scientific credibility, dismissing it entirely may overlook its potential utility in other contexts.


The Randomness Advantage: Lessons from Indigenous Practices


Seemingly irrational practices often hold hidden value.


Anthropological studies reveal that randomness can be a powerful tool for decision-making, particularly in unpredictable environments, where it's difficult to predict when hostility will occur.


Consider the Naskapi hunters of Labrador, a nomadic tribe that attracted the attention of many anthropologists in the early 20th century. According to Omar Khayyam Moore in his publication Divination - A New Perspective (1957), the Naskapi used pyro-scapulimancythe interpretation of crack patterns on heated shoulder bonesto determine hunting directions whenever the tracks of caribou (a type of reindeer, the preferred food source for the Naskapi) ran dry. This method, while seemingly arbitrary, introduced randomness into their hunting strategies. By avoiding predictable routes based on experience, the Naskapi outwit the prey that have adapted to anticipate human behaviour.


Similarly, James R. McGoodwin wrote in his report Do Randomising Devices Aid Marine Hunters?(1989) about indigenous fishermen hunting sharks in Mexico by using random selection methods to choose fishing spots, when no other cues are available. By using a coordinated random search pattern, they minimised the time spent on finding new fishing grounds and maximised the haul for all fishermen. These examples demonstrate how randomness can confound predictable systems, yielding practical benefits even in the absence of conscious strategy.


Astrology, in a modern context, can play a similar role. While it doesn’t predict events or traits, it offers a structured way to introduce controlled randomness into our lives, helping us navigate complex decision landscapes.


Astrology in the Age of Decision Fatigue


Photo by Levi Meir Clancy from Unsplash+

We live in a world inundated with choices. From streaming platforms with endless options to dating apps offering thousands of potential matches, the sheer volume of possibilities can lead to analysis paralysis. This phenomenon—where decision-making becomes overwhelming—stalls action and fuels anxiety.


Astrology, though scientifically ungrounded, provides a surprisingly effective antidote. Using astrological signs as a filter is not about believing in their mystical power; it’s about leveraging an arbitrary criterion to simplify choices. For instance:


  • In dating, eliminating potential matches based on astrological signs narrows the field, making the selection process feel less daunting.

  • In everyday life, astrology can help with mundane decisions, such as what to cook, what to wear, or which book to read next. By introducing randomness, these decisions become playful rather than paralysing.


The act of filtering, however arbitrary, can alleviate the stress of endless deliberation, turning choice-making into a lighter, more enjoyable process.


Psychological Comfort in a Chaotic World


Astrology’s appeal isn’t just about simplifying choices; it’s also deeply tied to its ability to provide emotional solace.


In moments of uncertainty, people often seek frameworks to make sense of their experiences. Astrology, with its personality types (based on zodiac signs) and structured narratives, offers a way to process emotions and events, even if it lacks empirical backing.


This is particularly evident during periods of stress or transition. Reading a horoscope that suggests “change is coming” might not alter reality, but it can create a sense of preparedness or control. Similarly, discussing astrological compatibility can spark conversations, creating social bonds and shared cultural touchpoints.


For many, astrology functions less as a science and more as a form of self-reflection and connection. It becomes a language through which people explore their identities and relationships, regardless of its objective accuracy.


Cultural Significance and the Role of Rituals


Astrology also endures because of its cultural and ritualistic value.


Just as the Naskapi’s pyro-scapulimancy was embedded in their way of life, astrology serves as a modern ritual, providing rhythm and meaning to people’s routines. Checking daily horoscopes, reflecting on Mercury retrograde, or comparing birth charts can feel grounding in an otherwise chaotic world.


This cultural significance extends beyond the individual. Astrology fosters community, creating spaces for shared experiences and collective storytelling. From casual conversations about “being such a Virgo” to dedicated astrology groups online, these interactions provide connection in an increasingly disconnected society.


Photo by Andrej Lišakov on Unsplash+

Final Thoughts: Embracing Astrology’s Hidden Potential


While astrology fails as a predictive science, its value lies elsewhere. As a tool for introducing randomness, simplifying choices, and fostering emotional and social connections, astrology has a surprising amount to offer in our modern lives.


The next time you’re overwhelmed by decisions, consider letting your star sign—or any other arbitrary criterion—guide you. Not because the stars dictate your fate, but because sometimes, a touch of randomness is the most rational choice.


Astrology might not predict your future, but it can help you navigate the present—one playful, simplified choice at a time.

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