Easily.
I tried an experiment a few years ago. I had this friend trying to persuade me that I should call for a reading. She gave me the phone number of her reader.
I called, but I gave completely bogus information about my birth date, etc. I recorded the result and sent it to my friend.
She waxed rhapsodic about how accurate it was, pointing out things that she thought agreed with my personality and my history.
Then, when I told her that I had given a bogus birthdate etc, she told me I wasn't playing fair.
So ... she was completely willing to accept the accuracy of a reading that was (at least theoretically) based on nothing. In truth, it was based on the person talking to me and had nothing to do with what planet was in what zodiac symbol and where the Sun was. It had far more to do with the reader's ability to read between the lines when talking to me. An intuitive reader with bogus information will presumably do better than a non intuitive reader with correct information.
What does that tell you about the information?
Of course, to do a true apples-and-apples test, I would need to be able to give the same reader incorrect data and correct data and be able to compare her results - but if she remembers me, that won't work.
I will admit, my little test wasn't particularly statistically valid (not enough samples), but there has been a ton of statistical work on this subject, and NOBODY has found any repeatable correlation between these various astronomical phenomenon and anything else. There is some correlation between when you were born in the year and your personalities having to do with how old you were when you entered the school system ... but that has NOTHING to do with where the stars were.
If you want to read your horoscope and think its fun - go for it. However, it is just as accurate as flipping lots of coins. If you learn anything about yourself, it has more to do with your ability to analyze yourself than where the planets are.