1) The writer argues that the speed of one’s handwriting reflects their level of intelligence. As such, an intelligent person, who is able to “get down to the essentials very quickly”, is bound to write faster, in the author’s opinion.
2) Just as with intelligence, the author believes that grater fluency and eloquence is closely related to the ability to write faster.
3) It is said some writers abandon the writing style they were taught at school because they find it inefficient. They find that an original and more economic style better suits them.
4) The discrepancy between the size of their writing and the size of their signature is what makes the handwriting of some executives unusual.