In probability theory, the birthday problem, or birthday paradox pertains to the probability that in a set of randomly chosen people some pair of them will have the same birthday. In a group of 23 (or more) randomly chosen people, there is more than 50% probability that some pair of them will both have been born on the same day. For 57 or more people, the probability is more than 99%, and it reaches 100% when the number of people reaches 367 (there are a maximum of 366 possible birthdays).
That’s from wikipedia. How many of your friends share a birthday with you? I must be the exception to the rule – none. Though I do have a lot of friends with birthdays around the same date as mine.
Anyone noticed how many family members share a birthday – son and mother, two siblings? Person A Sun conjunct Person B’s Sun is a powerful and stimulating influence. In addition, venus and mercury are never far from the sun, so probably they share conjunctions with those two planets as well. I have family members and friends with spouses that share their birthday or are within 2-3 days. Sharing Sun and/or Mercury and/or Venus makes for similar life purpose (Sun), values (Venus rules Taurus), approach to money, similar tastes in art and love (Venus rule Libra), communication skills and day to day transport(Mercury rules Gemini), and everyday habits (Mercury rules Virgo). So much for opposites attract!