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The shape of a constellation, moreover, is ephemeral. A million years ago our Homo erectus ancestors gazed out nightly at a set of very different constellations. A million years hence, our descendants will see yet other shapes in the sky, and their astrologer (if our species has not grown up and sent them packing long since) will be fabricating their oracles on the basis of a different zodiac.

Richard Dawkins#109

ScienceTimeAstrologyAstronomyPatterns

About this quote

What does it mean?
Dawkins notes that constellations change over millions of years, showing astrology is based on shifting patterns that future humans will not recognize.
In plain terms
Constellations change over time, so astrology relies on temporary patterns.
What can you take from it?
Astrological signs are arbitrary and temporary.

Where it applies

  • debating astrology
  • explaining astronomy

Putting it to work

  • understanding star movement
  • critiquing horoscopes

Questions to consider

  • Why do people trust horoscopes?
  • How do we view stars?

Another view

Cultural meanings of signs persist even if shapes change.

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