Marie Curie once conducted research on a psychic medium.
Marie and Pierre Curie took part in examinations of Eusapia Palladino, an Italian medium who claimed she could channel the dead, and attended a series of seances two years after obtaining the Nobel Prize in Physics. Pierre obviously believed that some of Palladino's accomplishments, such as levitating items and tables, were genuine. (Marie didn't appear to be as convinced.)
Even when written upside down or with a mirror image, none of the Hindi alphabets create an illusion.