Physicist Richard Feynman read a book on cold reading, and then practiced it for fun. He got so good at it that he quit because people were insisting that he was actually psychic, but refused to admit it. They would not hear a word of his factual and truthful explanation of his "gift".

In this particular thread, I am fascinated by the tremendous hostility towards the concept of even testing a claim. Forget bias or slant or whatever in how data are examined or what the data even are. The idea of putting atsrology to any kind of objective test is apparently "ignorant". Little irony in that, eh?