You seem to be trying to ride two horses at once! Obviously truth is not relative to individuals. But before you dismiss things as nonsense, you need evidence just as much as those who advocate them do.
Do I think crystals have an effect on people? I honestly don't know, and I'm not going to guess on the basis of my ignorance.
Do I think astrology works? No: I know it works, from the rigorous tests conducted by myself and others. Of course, if by "astrology" you mean the predictions made in newspapers, then that is rubbish. Interestingly enough, the research that demonstrated that those predictions do no better than chance was carried out by the Scottish Astrological Association.
Crystals
1999 Test and 2001 Double-Blind Test
http://www.myinformedlife.co.uk/crystal-therapy-really-work/
"Whether the crystal was real or fake did not produce any significant difference in the strength of the sensations reported by participants. As such, the researchers concluded that the effects the participants reported feeling were more likely to have been caused by the power of suggestion rather than ‘subtle energies unknown to science.’-...
...Both of French’s studies investigating crystal power demonstrated interesting phenomena; of participant susceptibility, priming, and demand characteristics. However, these factors produced patterns in the results regardless of whether the crystal was real or fake. For this reason, the participants’ experience couldn’t possibly be down to minute electrical charges inside the quartz crystals. The researchers concluded that the ‘power of crystals’ is in fact the power of suggestion."
Astrology
http://www.relativelyinteresting.com/astrology-and-horoscopes-debunked/
"In another experiment, the famous French Astrologer, Michael Gauquelin, offered free horoscopes to any reader of Ici Paris, if they would give feedback on the accuracy of his supposedly “individual” analysis. He wanted to scientifically test the profession of astrology. As with Forer’s experiment, there was a trick: he sent out thousands of copies of the same horoscope to people of various astrological signs – and
94% of the readers replied that his reading was very accurate and insightful.
What they didn’t know was that the horoscope was that of a local mass murderer, Dr. Petiot, who had admitted during his trial that he had killed 63 people. This is clearly another case of subjective validation where subjects focus on the hits of some general analysis that’s
supposed to be unique to them."
An Astronomer's opinion
http://www.relativelyinteresting.com/astrology-and-horoscopes-debunked/
"So what does science have to say about astrology? Phil Plait (a veritable astronomer, not astrologer) summarizes his scientific opinions as follows:
- There is no force, known or unknown, that could possibly affect us here on Earth the way astrologers claim. Known forces weaken too fast, letting one source utterly dominate (the Moon for gravity, the Sun for electromagnetism). An unknown force would allow asteroids and extrasolar planets to totally overwhelm the nearby planets.
- Like psychics, astrologers tend to rely on human’s ability to remember “hits” and forget ”misses” – a form of selective bias. Even an accurate predictions may be due to simple chance.
- Study after study has shown that claims and predictions made by astrologers have no merit. They are indistinguishable from chance, which means astrologers cannot claim to have some ability to predict anyone’s life’s path or destiny.
- There is harm in astrology. It weakens people’s ability to rationally look at the world, an ability we need now more than ever.
Without going into further detail, I highly recommend reading the full
article on his website."
Pseudoscience and Astrology
http://www.helsinki.fi/teoreettinen...hagard_-_Why_Astrology_Is_A_Pseudoscience.pdf
"A theory or discipline which purports to be scientific is pseudoscientific if and only if:
[228] it has been less progressive than alternative theories over a long period of time, and faces many unsolved problems; but 1. the community of practitioners makes little attempt to develop the theory towards solutions of the problems, shows no concern for attempts to evaluate the theory in relation to others, and is selective in considering confirmations and disconfirmations."