Say it aloud please.....
Most people say the address 1309 as “thirteen, O, nine” not “thirteen, zero, nine.”
You might not have even realized that you hear someone say “O” and you think and write down “zero.” Why do we do that? It points to the phonological loop you have in your brain and economy of effort. The phonological loop is part of your working memory where you are repeating the information you want to remember in your conscious mind over and over. The economy of effort is very simple for a knowledgeable individual. Saying the two syllables for “zero” takes one moment longer and more complex mouth movements than saying O.
With the letter O you just open your mouth once and say the long vowel sound. Think about “economy of effort” and individuals who have long first names such as Timothy or Elizabeth. People in a work setting, where time is valuable, will truncate the name to “Tim” or “Beth.” That is what I believe has happened to the more complex word “zero”. It has been reduced to its last sound- “o.” This is faster and easier to say. It is just confusing for language delayed children and English as a second language learners. What do you think? Dana Merritt MS CCC Speech Language Pathologist and Vision Therapist