Astrology Is Not A Science, And That Is Not The Interesting Question

Astrology is not a science. This is not a controversial position, it is not a matter of interpretation, and a site that publishes astrology should be able to say it plainly.

What is more interesting is what follows from that, because the usual conclusion – that it is therefore worthless and its readers are foolish – does not follow, and the argument gets more interesting once you stop there.

What The Evidence Shows

The best-known test is Shawn Carlson’s 1985 double-blind study, published in Nature. Astrologers were given natal charts and three personality profiles, one of which belonged to the chart’s owner, and asked to match them. The astrologers had agreed the protocol in advance and considered it fair. They performed at chance.

Geoffrey Dean’s work on “time twins” – people born within minutes of each other in the same place – found no significant similarity across a wide range of measured traits. If birth moment shaped personality in the way astrology describes, this is where the effect should be most visible, and it was not there.

There is no proposed mechanism either. The gravitational influence of Mars on a newborn is smaller than that of the building the birth takes place in. No known force scales in a way that would make planetary positions relevant.

That is a genuinely closed case for astrology as a causal claim about the world.

The Category Question

Here is where it gets more interesting. Almost nothing people actually value survives the test being applied to astrology.

No study establishes that a novel tells you something true about human nature. No mechanism explains why a piece of music is moving. There is no double-blind evidence that a myth is a useful frame for a life. We do not usually conclude from this that novels, music and myth are worthless – we conclude that the test is aimed at the wrong category.

Astrology is closer to those than to meteorology. It is a symbolic vocabulary for describing temperament, and it is unusually well-developed as one: twelve temperaments, ten functions, twelve life areas, and a set of rules for combining them. Whether or not the planets have anything to do with it, that is a rich descriptive language, and people find it useful for the same reason they find any descriptive language useful.

Where This Stops Being Harmless

The category defence has a hard limit, and it is worth being precise about where it falls.

Astrology used as a prompt – a way of noticing patterns you may already half-recognise – costs nothing and occasionally clarifies something. Astrology used as a decision procedure is a different matter. Declining a job because of a transit, staying in a bad relationship because the synastry is good, or delaying medical care because of a retrograde are all real harms, and the symbolic-language defence does not cover any of them.

The line is roughly this: using astrology to think about a decision is fine, and using it to avoid making one is not. A frame that helps you notice something is doing its job. A frame that supplies an authority you can hand a choice to has stopped being a frame and become an abdication.

Why This Site Says All This Out Loud

Because the alternative is worse. A site that implies its readings are predictive is either misleading people or assuming they are not smart enough to handle the distinction, and both are insulting.

The astronomy underneath the calculators here is real and we check it carefully – the positions are genuinely correct, and that is a claim we are prepared to defend. What those positions are taken to mean is tradition and interpretation. Keeping those two things visibly separate is the entire editorial position of the site, and it is why the calculators tell you their method and their limits rather than only their answer.