• The article discusses the unique writing style of Leonardo da Vinci, known as "mirror writing." Da Vinci would write from right to left, requiring the reader to hold the text up to a mirror to read it properly. This technique was likely employed to keep his ideas and inventions private, as it would be difficult for others to decipher his writings.

• Da Vinci's use of mirror writing was not limited to his personal notes and journals. He also incorporated this style into his artwork, with some of his paintings and drawings containing hidden messages or additional details that can only be revealed through the use of a mirror. This added an extra layer of complexity and intrigue to his creative works.

• The article suggests that da Vinci's mirror writing was not merely a practical tool for protecting his ideas, but also a reflection of his unique perspective and creative genius. By thinking and writing in a way that challenged the conventional norms, da Vinci demonstrated his ability to see the world from a different angle, which likely contributed to his groundbreaking innovations and discoveries in fields ranging from art to science.