› added 5 years ago

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TIL in 1948 psychologist Bertram Forer gave a personality test to 39 students and provided the results one week later. The class gave the results' accuracy a rating of 4.3 out of 5. The results Forer provided to every student was exactly the same sketch, all gathered from a newsstand astrology book.

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5VWJ9 TIL it is the sperm that determines the sex of the baby prior to conception. The egg is always an X chromosome, if the sperm is X the baby is female (XX), if the sperm is Y the baby is male (XY)
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