when trump signs an executive order, what does science and size have to do with it? here and jeanne. >> it's a big one. >> reporter: not just big, it's enormous, it's colossal. it's huge! marking his territory when it comes to president trump's signature, even oldsters won't be needing their reading glasses. why, why is his signature so big? author j.k. rowling responded, i didn't believe in graphology until about three minutes ago. linked to a website what large handwriting means. an independent handwriting expert confirmed. >> correlates with narcissism, with ego, a grandiose sense of