A problem with astrology which
was known to Greek astronomers by 150 BC and may have been known even earlier arises from
the phenomenon known as the precession of the equinoxes. Because the spin axis of the
earth turns in a circle around a direction perpendicular to the plane of the earth's
orbit, the point on the earth's orbit at which a given season begins changes slowly but
continuously. He problem is that the early astrologers, for whom the sun rose in Aries at
the spring equinox, defined the sun sign of Aries to be centered on the equinox. But the
equinox swings in a great circle along the zodiac and will not return to Aries for about
26,000 years. Thus today the astrological zodiac sign Aries is nowhere near the actual
constellation Aries which gave the sign its name and meaning! No sign matches its
constellation now!
Of course, when one has a system based on
randomness and arbitrary convention, a shuffle, mix-up or derangement of the system is
unimportant, because the whole system is just a random word generator, and it continues to
generate random words as you mix it further. The puzzle is how any conscious human being
could remain unaware of the arbitrariness of the procedure, once he understands it.
Returning to the question of the popularity of
astrology, psychologists have no trouble accounting for it. It comes from the uniquely personal
aspect of astrology. Every day you pick up the paper, turn to the astrology column, and read
about yourself! Not Ronald Reagan, not Madonna, not Elizabeth Taylor
but you,
you, you. It's all about you. It's all to do with you. The whole infinite universe is
reduced to dime-store clockwork whose sole purpose is to tell you whether it's a good day
to go shopping or not!
Psychologist shave shown over and over that
customers are satisfied with astrological predictions as long as there is some ritual of
personalization. For example, customers are all given exactly the same vague, general
statement. But half the customers are first asked many detailed questions and have to give
much personal information before getting the statement. And the other half of the
customers are asked for hardly any information at all before getting their (identical)
statement. If is invariably found that the first half rate their statements as "very
accurate," "very satisfactory," etc., while the second half rate their
statements as "all right, but not too precise," or "not as good as some
I've had," etc. All astrological readings of all types are invariably so-called
"formula readings," vague and general statements that apply to essentially
everyone alive, and are in no way specific or individual.
We often refer to the 20th century as
the age of science. Modern science has devastated the foundations of astrology at every
possible point. For instance, the time of birth of an individual is in no way significant.
The individual is formed at conception, 9 months before birth. What are the astrological
implications of caesarian sections or induced deliveries? Modern biology has uncovered the
molecular basis of genetic inheritance, and there is no room for astrology anywhere in the
picture. Molecules don't have horoscopes. From the standpoint of physics and astronomy,
astrology is even more ludicrous than from the standpoint of biology and genetics. The
gravitational force exerted on a newborn baby by the earth itself is more than a million
times greater than that exerted by any celestial object; the tidal stress exerted by the
mother and the hospital building are likewise a million times greater than that exerted by
any celestial body. The electromagnetic radiation falling on the baby from the hospital
room lights is a million times more intense than that from any other celestial object
except the sun itself. Most important of all, human beings are made of atoms; everything
is made of atoms. If there were any actual phenomenon of nature underlying astrology, everything
would be affected, not just human beings. The forces of nature are universal, exerted
from atom to atom, and do not discriminate between living and nonliving matter.
In short, there is nothing whatsoever in all of
nature as we know it that gives any credibility to any astrological idea. There is nothing
whatsoever in astrology itself that gives any credence to any astrological idea. As a
belief system astrology is arbitrary and unjustifiable, and has no connection to reality
at any point.
An interesting experiment suggested by astronomer
Derral Mulholland is to read your newspaper (or any other) daily horoscope
"reading" for a week or two, checking it against your daily experience.
Then, for the same length of time, read a totally different and supposedly inapplicable
"horoscope." You will find no difference in the accuracy, or lack thereof, of
the "readings." It seems hardly possible that any thinking human being could
take any aspect of astrology seriously, after having had any experience with it. But one
should never underestimate the extent of human irrationality.
There are more than 10,000 practicing astrologers
in the U.S., and Americans spend more than $200 million annually consulting astrologers.
In short, millions of Americans, from Ronald Reagan to minimum wage earners, will
doubtless continue to regulate some part of their daily schedule in accord with the
arbitrary and potentially harmful "advice" generated by the mindless
random-advice generator provided by astrology. Ironically, they will therefore continue to
pay unknowing lip service to the tenets of an otherwise forgotten religion of ancient
Babylon.
Pseudoscience Fact Sheets: Resources to
Promote Critical Thinking are produced by the Austin Society to Oppose
Pseudoscience (with the assistance of AFF).
The complete collection of Pseudoscience
Fact Sheets is available from AFF Electronic Bookstore. 43
pp.
For further reading: