Final answer:
Without additional context, it's difficult to say where Simon saw the article, but possibilities include the Medical Journal of Australia for medically related content or Ms. Magazine for topics on the women's movement or body image.
Step-by-step explanation:
Given the magazines mentioned such as The Yorker, Harper's Magazine, and The Atlantic, as well as periodicals like Sports Illustrated, Rolling Stone, and The Wall Street Journal, it is difficult to determine precisely where Simon saw the article without additional context.
However, considering the mention of an editorial from the Medical Journal of Australia, which might suggest the content is medically related, and magazine Ms., known for its focus on women's issues, we can speculate the article could potentially be in one of these publications.
If the article was related to medical, health, or scientific content, it is possible that Simon saw the article in the Medical Journal of Australia, especially given the specific reference to an editorial from February 1973.
On the other hand, if the article's subject was about women's movement, body image, or related social issues, it could have been in Steinem's Ms. Magazine. Without the topic of the article Simon saw, it is a challenge to pinpoint the exact magazine.