The link goes to a story I learned about in Pocket, an article collection service available to Firefox browser users. The story is about women twins who married male twins, live near each other and interact often. That arrangement made me think of what I got out of reading the book called "Tru Biz". That book is about communities of hearing impaired and deaf Americans, their communities and culture.
One of the important parts of such communities is how each individual communicates. Some members can hear a little, some can lip-read, some use hand language. Especially when children or teens, the favorite mode of communication can separate the community into sub-groups that favor or reject some modes.
More than once while a member of a college wrestling team, our guys rode a bus to the well-known college of the deaf, Gallaudet. We were quite aware that the wrestler out on the mat sometimes communicated during the match with the coach by hand signals.
The article linked above brought my attention to the experience of growing up with an identical twin. I am confident that such a condition has some pluses and minuses that I have not experienced.
