Carl Sagan said years ago that they sort of made up
a correlation of the constellations; I always looked at it
as a form of "superstition " / and folks do spend money
on it.I find it sad actually , misplaced dedication to
myth.

I do not believe in astrology. I can not explain why it works, not as a predictor of the future. But as a compatibility reference or personality reference. That kind of thing. It vexes me immensely. I am flummoxed.

Whatever the woman thinks is important is important. If she thinks the kind of car you drive is important, it's important. I think that astrology thing is there to serve as an excuse when the guy isn't hot enough.

It could be important if the people involved in the match believe it is.

Imagine, for example, that Julianne and Simon see each other's photos on Tinder. They find one another sufficiently attractive to want to know more and, as is usually the case, there are many things they like about each other and some they don't; however, there are no obvious deal-breakers and thus they decide to meet.

However, Julianne and Simon aren't particularly bright and are both avid believers in astrology. Therefore, they enter each other's birth details into an app and discover that they are supposedly incompatible, which makes them think any relationship they might have is doomed before it even starts and stop making an effort. Perhaps they still meet, but neither can really be bothered and, just going through the motions, their dinner together is boring and they both just want to go home. Quickly, they go their separate ways in search of new potential partners whom the app and their silly beliefs say are compatible.

Sad, really. They might have fallen in love and spent the rest of their lives together in happiness.

A Ghost told me it works so I believe it.

As @1of5 and others point out, there are other things besides the stars that could cause variations due to time of year of conception or birth. Always remember correlation does not imply causality.

I do not believe in star signs despite my being atypical of pretty much any label you could slap on me and yet being a totally typical pisces. I chalk this up to the random nature of our experiences combined with our universal urge to find not onky meaning but irony in all the randomness.

g

My sign is neon.

Not the stars, the seasons.

What a mother eats while the fetus is developing has an impact on the brains development, especially during the 3rd trimester (or second, can't remember which). Different foods were available during different times of the year so kids born in December had different foods consumed by thier mothers than kids born in June.

People are apparently easy to delude. What's one more delusion, especially when this isn't the silliest or the most toxic.