Why astrology is the ultimate case study in pseudoscience
In short: Astrology is often cited as the quintessential example of pseudoscience. It doesn't just lack evidence; it actively avoids the very mechanisms that define scientific progress. From Karl Popper's theories on falsifiability to Thomas Kuhn's views on historical context, philosophers have dissected why astrology remains a persistent human belief despite repeated experimental failure.
The scientific rejection of astrology stems from its lack of explanatory power. There is no known mechanism by which celestial motions could influence human biology or physics. In controlled studies, such as the famous Shawn Carlson test involving a committee of scientists and astrologers, natal astrology performed no better than random chance. Because it fails to provide verifiable predictions, the scientific community classifies it as pseudoscience.
Philosophers offer different lenses on this failure. Karl Popper argued that science requires falsifiability—the ability for a theory to be proven wrong by a specific test. Astrology is 'pseudo-empirical' because it appeals to observation but refuses to respond to experimental failure. In contrast, Thomas Kuhn suggested that astrology is unscientific because it is non-empirical; it follows a sequence of rules like medieval medicine without attempting to solve new puzzles or conduct research.
Other thinkers, like Paul Thagard, argue that astrology is only truly falsified when replaced by a successor, like psychology. He notes that astrology has failed to progress in nearly 2,000 years. Furthermore, Edward W. James identifies the issue as irrationality, noting that astrological literature is often infused with fallacious logic, such as latching onto coincidences while ignoring evidence that contradicts their claims. Ultimately, accepting astrology requires rejecting the established scientific disciplines that contradict it.
Despite its lack of validity, astrology has shaped human history. It drove early developments in astronomy, as figures like Ptolemy sought to calculate planetary movements for astrological purposes. Even during the Islamic Golden Age, rulers funded observatories to refine the data needed for predictions, even though the practice was later prohibited.
Opens the Intellect+ feed with this card first. Swipe up for the next one.
Sources
- Summary by Intellect · source: Astrology and science
To cite this card, link to https://intellectplus.co.uk/app/ideas-astrology-and-science.
How we source, check and correct cards: Editorial standards.
General information, not professional advice. Spotted an error? Flag the card or see corrections and complaints.
Intellect Plus is a visual educational discovery platform for exploring fascinating facts and ideas. Brain Food, Not Brain Rot. What is Intellect Plus?
Related
More in Probability · More in Ideas & Philosophy · Latest · A–Z · All topics
