3 Ways to Arguing that Astrology is a Lie

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3 Ways to Arguing that Astrology is a Lie
3 Ways to Arguing that Astrology is a Lie

Are you surrounded by people who make the big decisions in life based on what the horoscope tells them to do? Astrology can be fun to discuss, but people love to take it too far, choosing careers, spouses, and new cities after reading a paragraph in the daily newspaper. Arguing that astrology is a lie may be a way to bring these people back to reality…


Method 1 of 3: Test the sign

Argue That Astrology is Fake Step 1

Step 1. Pretend you are from another sign close to someone who knows a lot about astrology

See if they guess what incorrect sign you're pretending to be.

Argue That Astrology is Fake Step 2

Step 2. Read the daily or weekly horoscope

Compare other signs to yours. Note how many of them will have a general instruction that will most likely be applicable to your individual situation. Almost all daily newspaper horoscopes are not carefully crafted or are actually randomly generated.

Argue That Astrology is Fake Step 3

Step 3. Note the generalizations among those who practice or believe in astrology

People interpret the same text in ways that suit them best.

Signs tend to reflect generalizations about regular human behavior. Study common sign generalizations and try to guess at those of people you know. Then compare their actual signs to the ones you thought they had. You're right?

Method 2 of 3: Sun Sign Astrology

Argue That Astrology is Fake Step 5

Step 1. Learn a little more about sun sign astrology

The most popular form of traditional Western astrology is the sun sign, the type found in the horoscope of many daily newspapers. If it were really accurate, its predictive value would be extremely high, but historically this has not been the case, as if it were, societies that follow it would consistently use it in powerful ways.

Argue That Astrology is Fake Step 6

Step 2. Examine the following:

A horoscope is an astrological prediction. The term is also used to describe a zodiac chart at the time of birth. The zodiac is divided into twelve zones of heaven, each named after the constellation that originally fell within its zone (Taurus, Leo, etc.). The paths apparently taken by the sun, moon and major planets fall into the zodiac. Because of the precession of the equinoxes, the equinox and solstice points have moved west about 30 degrees in the last 2,000 years. Thus, the zodiacal constellations named in ancient times no longer correspond to the segments of the zodiac represented by their signs. In short, if you had been born at the same time and on the same day 2,000 years ago, you would have been born under a different sign.

  • In fact, there should be 13 signs, not 12. It is precession that altered the very constellations from which many people "derive" their maps.
  • The precession of the equinox is caused by the fact that the Earth's axis of rotation (which causes there to be day and night) and its axis of revolution around the Sun (which marks the passage of each year) are not parallel. They are 23.5 degrees away from the alignment; that is, the Earth's axis of rotation is tilted. This slope also triggers our seasons, a fact that Ptolemy understood but that many people do not understand to this day. Ptolemy understood that the Earth's axis of rotation was slowly moving in a circle, with an angular radius of 23.5 degrees over a period of about 26,000 years. He deduced this by making comparisons of data obtained by the ancient Sumerians 2,000 years before their time. He didn't understand what was leading to precession, but he did understand the movement. Now we realize that the Sun's gravitational forces exert pressure on the Earth's equator, generating a torque that changes the direction of the rotation axis. There is also a small variation of 18, 6 years caused by the Moon's orbit around the Earth. The moon also affects precession somewhat; however, the Sun's gravitational force is the main cause of the precession of the equinox, which is why its sign listed in the newspaper is in most cases one less than that of the modern, actual position of the Sun at its birth.

Method 3 of 3: Paradoxes and Sweet Illusions

Argue That Astrology is Fake Step 7

Step 1. Note the paradoxes

Modern signs as listed here are even more complicated when their boundaries are those of the current constellations. A more exact way to separate them would involve dividing the ecliptic into 30-degree slices like Ptolemy did, but keeping them centered on the patterns of the stars. This would make the time span for the signs increase by almost 30 days for each and eliminate the [13th] sign of Ophiuchus. Its modern sign would still be different from that of traditional designations.

Argue That Astrology is Fake Step 4

Step 2. Do a little research on the Forer effect

It was named after psychologist Bertram R. Forer, who demonstrated people's propensity to believe that loosely formulated "personality profiles" (which could not apply to anyone) were tailored and accurate.

Argue That Astrology is Fake Step 8

Step 3. Think about the similarities between astrology and racism

Both operate on the principle that a person's behavior is based on how they were born, rather than who they are. While most astrological readings are made up of cheap gimmicks highlighting a person's more general positive qualities, it bears on the idea that if you believe a person is introspective because he was born in December, you can also buy into the silly idea that a person is lazy because of the color of their skin.

Argue That Astrology is Fake Step 9

Step 4. Realize that, at the turn of the last century, phrenology (the study of the physical characteristics of the skull) was well accepted, in which the lumps and patterns of a skull could be interpreted in ways analogous to its personality

Similarly, astrology tries to assert itself as a science by its inherently vague methods.


  • While an open mind is recommended, don't believe everything you're told. Research the claims for yourself.
  • Try to think through the evidence logically before coming to a conclusion.
  • There are over 6 billion people on this planet. The population is increasing at 3 people per second, so what do you think of the idea that everyone born in a month, week or minute has the same fate? The answer is no. A lot of people have made it a business. Be aware that birth date and time alone are not enough to predict someone's fate, because location (longitude and latitude) is also needed to make an astrological profile.
  • Search the World Population Clock to see how it supports the above claim.
  • Web sites like rumors.org and television shows like "Mythbusters Myth Busters" are also good resources for general critical thinking.
  • Study the fundamentals of astrology.


  • Humanity strives to give meaning to its existential experience. Astrology is an attempt by some to come up with a predictive mechanism for past and future human behavior.
  • Although it is suggested that you do not believe in astrology, it is also recommended that you do not become closed to other matters in life. As with all things, weigh the evidence and draw your own conclusions.
  • Like religion, some people take astrology very seriously. Treat others with respect to avoid offending their beliefs.

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