At the end of the 19th century, a German otorhinolaryngologist named Wilhelm Fliess, close friend of Sigmund Freud, published one of the largest numerological nonsense of all times. According to Fliess, human life is governed by cycles of 23 and 28 days. The 23-day cycle is āmasculineā and prevails in men, and the 28-day cycle is āfeminineā and prevails in women, although both cycles affect both. But, not content with this, the numerological rage de Fliess led him to see the numbers 23 and 28, along with their multiples and combinations, everywhere.
